- ichthyic Dictionary lookup
adj. Fish-like.
- ichthyology Dictionary lookup
n. The branch of zoology that treats of fishes.
- ichthyosaurs Dictionary lookup
n. A fossil reptile.
- icily Dictionary lookup
adv. Frigidly.
- iciness Dictionary lookup
n. The state of being icy.
- icon Dictionary lookup
n. An image or likeness.
- iconoclast Dictionary lookup
n. An image-breaker.
- idealize Dictionary lookup
v. To make to conform to some mental or imaginary standard.
- idiom Dictionary lookup
n. A use of words peculiar to a particular language.
- idiosyncrasy Dictionary lookup
n. A mental quality or habit peculiar to an individual.
- idolize Dictionary lookup
v. To regard with inordinate love or admiration.
- ignoble Dictionary lookup
adj. Low in character or purpose.
- ignominious Dictionary lookup
adj. Shameful.
- Iliad Dictionary lookup
n. A Greek epic poem describing scenes from the siege of Troy.
- ill-natured Dictionary lookup
adj. Surly.
- illegal Dictionary lookup
adj. Not according to law.
- illegible Dictionary lookup
adj. Undecipherable.
- illegitimate Dictionary lookup
adj. Unlawfully begotten.
- illiberal Dictionary lookup
adj. Stingy.
- illicit Dictionary lookup
adj. Unlawful.
- illimitable Dictionary lookup
adj. Boundless.
- illiterate Dictionary lookup
adj. Having little or no book-learning.
- illogical Dictionary lookup
adj. Contrary to the rules of sound thought.
- illuminant Dictionary lookup
n. That which may be used to produce light.
- illuminate Dictionary lookup
v. To supply with light.
- illumine Dictionary lookup
v. To make bright or clear.
- illusion Dictionary lookup
n. An unreal image presented to the senses.
- illusive Dictionary lookup
adj. Deceptive.
- illusory Dictionary lookup
adj. Deceiving or tending to deceive, as by false appearance.
- imaginable Dictionary lookup
adj. That can be imagined or conceived in the mind.
- imaginary Dictionary lookup
adj. Fancied.
- imbibe Dictionary lookup
v. To drink or take in.
- imbroglio Dictionary lookup
n. A misunderstanding attended by ill feeling, perplexity, or strife.
- imbrue Dictionary lookup
v. To wet or moisten.
- imitation Dictionary lookup
n. That which is made as a likeness or copy.
- imitator Dictionary lookup
n. One who makes in imitation.
- immaculate Dictionary lookup
adj. Without spot or blemish.
- immaterial Dictionary lookup
adj. Of no essential consequence.
- immature Dictionary lookup
adj. Not full-grown.
- immeasurable Dictionary lookup
adj. Indefinitely extensive.
- immense Dictionary lookup
adj. Very great in degree, extent, size, or quantity.
- immerse Dictionary lookup
v. To plunge or dip entirely under water or other fluid.
- immersion Dictionary lookup
n. The act of plunging or dipping entirely under water or another fluid.
- immigrant Dictionary lookup
n. A foreigner who enters a country to settle there.
- immigrate Dictionary lookup
v. To come into a country or region from a former habitat.
- imminence Dictionary lookup
n. Impending evil or danger.
- imminent Dictionary lookup
adj. Dangerous and close at hand.
- immiscible Dictionary lookup
adj. Separating, as oil and water.
- immoral Dictionary lookup
adj. Habitually engaged in licentious or lewd practices.
- immortalize Dictionary lookup
v. To cause to last or to be known or remembered throughout a great or indefinite length of time.
- immovable Dictionary lookup
adj. Steadfast.
- immune Dictionary lookup
adj. Exempt, as from disease.
- immutable Dictionary lookup
adj. Unchangeable.
- impair Dictionary lookup
v. To cause to become less or worse.
- impalpable Dictionary lookup
adj. Imperceptible to the touch.
- impartial Dictionary lookup
adj. Unbiased.
- impassable Dictionary lookup
adj. That can not be passed through or over.
- impassible Dictionary lookup
adj. Not moved or affected by feeling.
- impassive Dictionary lookup
adj. Unmoved by or not exhibiting feeling.
- impatience Dictionary lookup
n. Unwillingness to brook delays or wait the natural course of things.
- impeccable Dictionary lookup
adj. Blameless.
- impecunious Dictionary lookup
adj. Having no money.
- impede Dictionary lookup
v. To be an obstacle or to place obstacles in the way of.
- impel Dictionary lookup
v. To drive or urge forward.
- impend Dictionary lookup
v. To be imminent.
- imperative Dictionary lookup
adj. Obligatory.
- imperceptible Dictionary lookup
adj. Indiscernible.
- imperfectible Dictionary lookup
adj. That can not be perfected.
- imperil Dictionary lookup
v. To endanger.
- imperious Dictionary lookup
adj. Insisting on obedience.
- impermissible Dictionary lookup
adj. Not permissible.
- impersonal Dictionary lookup
adj. Not relating to a particular person or thing.
- impersonate Dictionary lookup
v. To appear or act in the character of.
- impersuadable Dictionary lookup
adj. Unyielding.
- impertinence Dictionary lookup
n. Rudeness.
- imperturbable Dictionary lookup
adj. Calm.
- impervious Dictionary lookup
adj. Impenetrable.
- impetuosity Dictionary lookup
n. Rashness.
- impetuous Dictionary lookup
adj. Impulsive.
- impetus Dictionary lookup
n. Any impulse or incentive.
- impiety Dictionary lookup
n. Irreverence toward God.
- impious Dictionary lookup
adj. Characterized by irreverence or irreligion.
- implausible Dictionary lookup
adj. Not plausible.
- impliable Dictionary lookup
adj. Capable of being inferred.
- implicate Dictionary lookup
v. To show or prove to be involved in or concerned
- implicit Dictionary lookup
adj. Implied.
- imply Dictionary lookup
v. To signify.
- impolitic Dictionary lookup
adj. Inexpedient.
- importation Dictionary lookup
n. The act or practice of bringing from one country into another.
- importunate Dictionary lookup
adj. Urgent in character, request, or demand.
- importune Dictionary lookup
v. To harass with persistent demands or entreaties.
- impotent Dictionary lookup
adj. Destitute of or lacking in power, physical, moral, or intellectual.
- impoverish Dictionary lookup
v. To make indigent or poor.
- impracticable Dictionary lookup
adj. Not feasible.
- impregnable Dictionary lookup
adj. That can not be taken by assault.
- impregnate Dictionary lookup
v. To make pregnant.
- impromptu Dictionary lookup
n. Anything done or said on the impulse of the moment.
- improper Dictionary lookup
adj. Not appropriate, suitable, or becoming
- impropriety Dictionary lookup
n. The state or quality of being unfit, unseemly, or inappropriate.
- improvident Dictionary lookup
adj. Lacking foresight or thrift.
- improvise Dictionary lookup
v. To do anything extemporaneously or offhand.
- imprudent Dictionary lookup
adj. Heedless.
- impudence Dictionary lookup
n. Insolent disrespect.
- impugn Dictionary lookup
v. To assail with arguments, insinuations, or accusations.
- impulsion Dictionary lookup
n. Impetus.
- impulsive Dictionary lookup
adj. Unpremeditated.
- impunity Dictionary lookup
n. Freedom from punishment.
- impure Dictionary lookup
adj. Tainted.
- impute Dictionary lookup
v. To attribute.
- inaccessible Dictionary lookup
adj. Difficult of approach.
- inaccurate Dictionary lookup
adj. Not exactly according to the facts.
- inactive Dictionary lookup
adj. Inert.
- inadequate Dictionary lookup
adj. Insufficient.
- inadmissible Dictionary lookup
adj. Not to be approved, considered, or allowed, as testimony.
- inadvertent Dictionary lookup
adj. Accidental.
- inadvisable Dictionary lookup
adj. Unadvisable.
- inane Dictionary lookup
adj. Silly.
- inanimate Dictionary lookup
adj. Destitute of animal life.
- inapprehensible Dictionary lookup
adj. Not to be understood.
- inapt Dictionary lookup
adj. Awkward or slow.
- inarticulate Dictionary lookup
adj. Speechless.
- inaudible Dictionary lookup
adj. That can not be heard.
- inborn Dictionary lookup
adj. Implanted by nature.
- inbred Dictionary lookup
adj. Innate.
- incandescence Dictionary lookup
n. The state of being white or glowing with heat.
- incandescent Dictionary lookup
adj. White or glowing with heat.
- incapacitate Dictionary lookup
v. To deprive of power, capacity, competency, or qualification.
- incapacity Dictionary lookup
n. Want of power to apprehend, understand, and manage.
- incarcerate Dictionary lookup
v. To imprison.
- incendiary Dictionary lookup
n. Chemical or person who starts a fire-literally or figuratively.
- incentive Dictionary lookup
n. That which moves the mind or inflames the passions.
- inception Dictionary lookup
n. The beginning.
- inceptive Dictionary lookup
adj. Beginning.
- incessant Dictionary lookup
adj. Unceasing.
- inchmeal Dictionary lookup
adv. Piecemeal.
- inchoate Dictionary lookup
adj. Incipient.
- inchoative Dictionary lookup
n. That which begins, or expresses beginning.
- incidence Dictionary lookup
n. Casual occurrence.
- incident Dictionary lookup
n. A happening in general, especially one of little importance.
- incidentally Dictionary lookup
adv. Without intention.
- incinerate Dictionary lookup
v. To reduce to ashes.
- incipience Dictionary lookup
n. Beginning.
- incipient Dictionary lookup
adj. Initial.
- incisor Dictionary lookup
n. A front or cutting tooth.
- incite Dictionary lookup
v. To rouse to a particular action.
- incitement Dictionary lookup
n. That which moves to action, or serves as an incentive or stimulus.
- incoercible Dictionary lookup
adj. Incapable of being forced, constrained, or compelled.
- incoherence Dictionary lookup
n. Want of connection, or agreement, as of parts or ideas in thought, speech, etc.
- incoherent Dictionary lookup
adj. Not logically coordinated, as to parts, elements, or details.
- incombustible Dictionary lookup
adj. That can not be burned.
- incomparable Dictionary lookup
adj. Matchless.
- incompatible Dictionary lookup
adj. Discordant.
- incompetence Dictionary lookup
n. General lack of capacity or fitness.
- incompetent Dictionary lookup
adj. Not having the abilities desired or necessary for any purpose.
- incomplete Dictionary lookup
adj. Lacking some element, part, or adjunct necessary or required.
- incomprehensible Dictionary lookup
adj. Not understandable.
- incompressible Dictionary lookup
adj. Resisting all attempts to reduce volume by pressure.
- inconceivable Dictionary lookup
adj. Incomprehensible.
- incongruous Dictionary lookup
adj. Unsuitable for the time, place, or occasion.
- inconsequential Dictionary lookup
adj. Valueless.
- inconsiderable Dictionary lookup
adj. Small in quantity or importance.
- inconsistent Dictionary lookup
adj. Contradictory.
- inconstant Dictionary lookup
adj. Changeable.
- incontrovertible Dictionary lookup
adj. Indisputable.
- inconvenient Dictionary lookup
adj. Interfering with comfort or progress.
- indefensible Dictionary lookup
adj. Untenable.
- indefinitely Dictionary lookup
adv. In a vague or uncertain way.
- indelible Dictionary lookup
adj. That can not be blotted out, effaced, destroyed, or removed.
- indescribable Dictionary lookup
adj. That can not be described.
- indestructible Dictionary lookup
adj. That can not be destroyed.
- indicant Dictionary lookup
adj. That which points out.
- indicator Dictionary lookup
n. One who or that which points out.
- indict Dictionary lookup
v. To find and declare chargeable with crime.
- indigence Dictionary lookup
n. Poverty.
- indigenous Dictionary lookup
adj. Native.
- indigent Dictionary lookup
adj. Poor.
- indigestible Dictionary lookup
adj. Not digestible, or difficult to digest.
- indigestion Dictionary lookup
n. Difficulty or failure in the alimentary canal in changing food into absorptive nutriment.
- indignant Dictionary lookup
adj. Having such anger and scorn as is aroused by meanness or wickedness.
- indignity Dictionary lookup
n. Unmerited contemptuous conduct or treatment.
- indiscernible Dictionary lookup
adj. Not perceptible.
- indiscreet Dictionary lookup
adj. Lacking wise judgment.
- indiscriminate Dictionary lookup
adj. Promiscuous.
- indispensable Dictionary lookup
adj. Necessary or requisite for the purpose.
- indistinct Dictionary lookup
adj. Vague.
- indivertible Dictionary lookup
adj. That can not be turned aside.
- indivisible Dictionary lookup
adj. Not separable into parts.
- indolence Dictionary lookup
n. Laziness.
- indolent Dictionary lookup
adj. Habitually inactive or idle.
- indomitable Dictionary lookup
adj. Unconquerable.
- induct Dictionary lookup
v. To bring in.
- indulgence Dictionary lookup
n. The yielding to inclination, passion, desire, or propensity in oneself or another.
- inebriate Dictionary lookup
v. To intoxicate.
- inedible Dictionary lookup
adj. Not good for food.
- ineffable Dictionary lookup
adj. Unutterable.
- inefficiency Dictionary lookup
n. That which does not accomplish an intended purpose.
- inefficient Dictionary lookup
adj. Not accomplishing an intended purpose.
- ineligible Dictionary lookup
adj. Not suitable to be selected or chosen.
- inept Dictionary lookup
adj. Not fit or suitable.
- inert Dictionary lookup
adj. Inanimate.
- inestimable Dictionary lookup
adj. Above price.
- inevitable Dictionary lookup
adj. Unavoidable.
- inexcusable Dictionary lookup
adj. Not to be justified.
- inexhaustible Dictionary lookup
adj. So large or furnishing so great a supply as not to be emptied, wasted, or spent.
- inexorable Dictionary lookup
adj. Unrelenting.
- inexpedient Dictionary lookup
adj. Unadvisable.
- inexpensive Dictionary lookup
adj. Low-priced.
- inexperience Dictionary lookup
n. Lack of or deficiency in experience.
- inexplicable Dictionary lookup
adj. Such as can not be made plain.
- inexpressible Dictionary lookup
adj. Unutterable.
- inextensible Dictionary lookup
adj. Of unchangeable length or area.
- infallible Dictionary lookup
adj. Exempt from error of judgment, as in opinion or statement.
- infamous Dictionary lookup
adj. Publicly branded or notorious, as for vice, or crime.
- infamy Dictionary lookup
n. Total loss or destitution of honor or reputation.
- inference Dictionary lookup
n. The derivation of a judgment from any given material of knowledge on the ground of law.
- infernal Dictionary lookup
adj. Akin to or befitting hell or its occupants.
- infest Dictionary lookup
v. To be present in such numbers as to be a source of annoyance, trouble, or danger.
- infidel Dictionary lookup
n. One who denies the existence of God.
- infidelity Dictionary lookup
n. Disloyalty.
- infinite Dictionary lookup
adj. Measureless.
- infinity Dictionary lookup
n. Boundless or immeasurable extension or duration.
- infirm Dictionary lookup
adj. Lacking in bodily or mental strength.
- infirmary Dictionary lookup
n. A place for the reception or treatment of the sick.
- infirmity Dictionary lookup
n. A physical, mental, or moral weakness or flaw.
- inflammable Dictionary lookup
adj. Easily set on fire or excited.
- inflammation Dictionary lookup
n. A morbid process in some part of the body characterized by heat, swelling, and pain.
- inflexible Dictionary lookup
adj. That can not be altered or varied.
- influence Dictionary lookup
n. Ability to sway the will of another.
- influential Dictionary lookup
adj. Having the power to sway the will of another.
- influx Dictionary lookup
n. Infusion.
- infrequence Dictionary lookup
n. Rareness.
- infrequent Dictionary lookup
adj. Uncommon.
- infringe Dictionary lookup
v. To trespass upon.
- infuse Dictionary lookup
v. To instill, introduce, or inculcate, as principles or qualities.
- infusion Dictionary lookup
n. The act of imbuing, or pouring in.
- ingenious Dictionary lookup
adj. Evincing skill, originality, or cleverness, as in contrivance or arrangement.
- ingenuity Dictionary lookup
n. Cleverness in contriving, combining, or originating.
- ingenuous Dictionary lookup
adj. Candid, frank, or open in character or quality.
- inglorious Dictionary lookup
adj. Shameful.
- ingraft Dictionary lookup
v. To set or implant deeply and firmly.
- ingratiate Dictionary lookup
v. To win confidence or good graces for oneself.
- ingratitude Dictionary lookup
n. Insensibility to kindness.
- ingredient Dictionary lookup
n. Component.
- inherence Dictionary lookup
n. The state of being permanently existing in something.
- inherent Dictionary lookup
adj. Intrinsic.
- inhibit Dictionary lookup
v. To hold back or in.
- inhospitable Dictionary lookup
adj. Not disposed to entertain strangers gratuitously.
- inhuman Dictionary lookup
adj. Savage.
- inhume Dictionary lookup
v. To place in the earth, as a dead body.
- inimical Dictionary lookup
adj. Adverse.
- iniquity Dictionary lookup
n. Gross wrong or injustice.
- initiate Dictionary lookup
v. To perform the first act or rite.
- inject Dictionary lookup
v. To introduce, as a fluid, by ion.
- injunction Dictionary lookup
n. Mandate.
- inkling Dictionary lookup
n. A hint.
- inland Dictionary lookup
adj. Remote from the sea.
- inlet Dictionary lookup
n. A small body of water leading into a larger.
- inmost Dictionary lookup
adj. Deepest within.
- innocuous Dictionary lookup
adj. Harmless.
- innovate Dictionary lookup
v. To introduce or strive to introduce new things.
- innuendo Dictionary lookup
n. Insinuation.
- innumerable Dictionary lookup
adj. Countless.
- inoffensive Dictionary lookup
adj. Causing nothing displeasing or disturbing.
- inopportune Dictionary lookup
adj. Unsuitable or inconvenient, especially as to time.
- inquire Dictionary lookup
v. To ask information about.
- inquisition Dictionary lookup
n. A court or tribunal for examination and punishment of heretics.
- inquisitive Dictionary lookup
adj. Given to questioning, especially out of curiosity.
- inquisitor Dictionary lookup
n. One who makes an investigation.
- inroad Dictionary lookup
n. Forcible encroachment or trespass.
- insatiable Dictionary lookup
adj. That desires or craves immoderately or unappeasably.
- inscribe Dictionary lookup
v. To enter in a book, or on a list, roll, or document, by writing
- inscrutable Dictionary lookup
adj. Impenetrably mysterious or profound.
- insecure Dictionary lookup
adj. Not assured of safety.
- insensible Dictionary lookup
adj. Imperceptible.
- insentient Dictionary lookup
adj. Lacking the power of feeling or perceiving.
- inseparable Dictionary lookup
adj. That can not be separated.
- insidious Dictionary lookup
adj. Working ill by slow and stealthy means.
- insight Dictionary lookup
n. Intellectual discernment.
- insignificance Dictionary lookup
n. Lack of import or of importance.
- insignificant Dictionary lookup
adj. Without importance, force, or influence.
- insinuate Dictionary lookup
v. To imply.
- insipid Dictionary lookup
adj. Tasteless.
- insistence Dictionary lookup
n. Urgency.
- insistent Dictionary lookup
adj. Urgent.
- insolence Dictionary lookup
n. Pride or haughtiness exhibited in contemptuous and overbearing treatment of others.
- insolent Dictionary lookup
adj. Impudent.
- insomnia Dictionary lookup
n. Sleeplessness.
- inspector Dictionary lookup
n. An official appointed to examine or oversee any matter of public interest or importance.
- instance Dictionary lookup
n. A single occurrence or happening of a given kind.
- instant Dictionary lookup
n. A very brief portion of time.
- instantaneous Dictionary lookup
adj. Done without perceptible lapse of time.
- instigate Dictionary lookup
v. To provoke.
- instigator Dictionary lookup
n. One who incites to evil.
- instill Dictionary lookup
v. To infuse.
- instructive Dictionary lookup
adj. Conveying knowledge.
- insufficiency Dictionary lookup
n. Inadequacy.
- insufficient Dictionary lookup
adj. Inadequate for some need, purpose, or use.
- insular Dictionary lookup
adj. Pertaining to an island.
- insulate Dictionary lookup
v. To place in a detached state or situation.
- insuperable Dictionary lookup
adj. Invincible.
- insuppressible Dictionary lookup
adj. Incapable of being concealed.
- insurgence Dictionary lookup
n. Uprising.
- insurgent Dictionary lookup
n. One who takes part in forcible opposition to the constituted authorities of a place.
- insurrection Dictionary lookup
n. The state of being in active resistance to authority.
- intangible Dictionary lookup
adj. Not perceptible to the touch.
- integrity Dictionary lookup
n. Uprightness of character and soundness of moral principle.
- intellect Dictionary lookup
n. The faculty of perception or thought.
- intellectual Dictionary lookup
adj. Characterized by intelligence.
- intelligence Dictionary lookup
n. Capacity to know or understand.
- intelligible Dictionary lookup
adj. Comprehensible.
- intemperance Dictionary lookup
n. Immoderate action or indulgence, as of the appetites.
- intension Dictionary lookup
n. The act of stringing or stretching, or state of being strained.
- intensive Dictionary lookup
adj. Adding emphasis or force.
- intention Dictionary lookup
n. That upon which the mind is set.
- interact Dictionary lookup
v. To act reciprocally.
- intercede Dictionary lookup
v. To mediate between persons.
- intercept Dictionary lookup
v. To interrupt the course of.
- intercession Dictionary lookup
n. Entreaty in behalf of others.
- intercessor Dictionary lookup
n. A mediator.
- interdict Dictionary lookup
n. Authoritative act of prohibition.
- interim Dictionary lookup
n. Time between acts or periods.
- interlocutor Dictionary lookup
n. One who takes part in a conversation or oral discussion.
- interlude Dictionary lookup
n. An action or event considered as coming between others of greater length.
- intermediate Dictionary lookup
adj. Being in a middle place or degree or between extremes.
- interminable Dictionary lookup
adj. Having no limit or end.
- intermission Dictionary lookup
n. A recess.
- intermit Dictionary lookup
v. To cause to cease temporarily.
- intermittent Dictionary lookup
adj. A temporary discontinuance.
- interpolation Dictionary lookup
n. Verbal interference.
- interpose Dictionary lookup
v. To come between other things or persons.
- interposition Dictionary lookup
n. A coming between.
- interpreter Dictionary lookup
n. A person who makes intelligible the speech of a foreigner by oral translation.
- interrogate Dictionary lookup
v. To examine formally by questioning.
- interrogative Dictionary lookup
adj. Having the nature or form of a question.
- interrogatory Dictionary lookup
n. A question or inquiry.
- interrupt Dictionary lookup
v. To stop while in progress.
- intersect Dictionary lookup
v. To cut through or into so as to divide.
- intervale Dictionary lookup
n. A low tract of land between hills, especially along a river.
- intervene Dictionary lookup
v. To interfere for some end.
- intestate Dictionary lookup
adj. Not having made a valid will.
- intestine Dictionary lookup
n. That part of the digestive tube below or behind the stomach, extending to the anus.
- intimacy Dictionary lookup
n. Close or confidential friendship.
- intimidate Dictionary lookup
v. To cause to become frightened.
- intolerable Dictionary lookup
adj. Insufferable.
- intolerance Dictionary lookup
n. Inability or unwillingness to bear or endure.
- intolerant Dictionary lookup
adj. Bigoted.
- intoxicant Dictionary lookup
n. Anything that unduly exhilarates or excites.
- intoxicate Dictionary lookup
v. To make drunk.
- intracellular Dictionary lookup
adj. Occurring or situated within a cell.
- intramural Dictionary lookup
adj. Situated within the walls of a city.
- intrepid Dictionary lookup
adj. Fearless and bold.
- intricacy Dictionary lookup
n. Perplexity.
- intricate Dictionary lookup
adj. Difficult to follow or understand.
- intrigue Dictionary lookup
n. A plot or scheme, usually complicated and intended to accomplish something by secret ways.
- intrinsic Dictionary lookup
adj. Inherent.
- introductory Dictionary lookup
adj. Preliminary.
- introgression Dictionary lookup
n. Entrance.
- intromit Dictionary lookup
v. To insert.
- introspect Dictionary lookup
v. To look into.
- introversion Dictionary lookup
n. The act of turning or directing inward, physically or mentally.
- introvert Dictionary lookup
v. To turn within.
- intrude Dictionary lookup
v. To come in without leave or license.
- intrusion Dictionary lookup
n. The act of entering without warrant or invitation; encroachment.
- intuition Dictionary lookup
n. Instinctive knowledge or feeling.
- inundate Dictionary lookup
v. To fill with an overflowing abundance.
- inundation Dictionary lookup
n. Flood.
- inure Dictionary lookup
v. To harden or toughen by use, exercise, or exposure.
- invalid Dictionary lookup
adj. Having no force, weight, or cogency.
- invalid Dictionary lookup
n. One who is disabled by illness or injury.
- invalidate Dictionary lookup
v. To render of no force or effect.
- invaluable Dictionary lookup
adj. Exceedingly precious.
- invariable Dictionary lookup
adj. Unchangeable.
- invasion Dictionary lookup
n. Encroachment, as by an act of intrusion or trespass.
- invective Dictionary lookup
n. An utterance intended to cast censure, or reproach.
- inveigh Dictionary lookup
v. To utter vehement censure or invective.
- inventive Dictionary lookup
adj. Quick at contrivance.
- inverse Dictionary lookup
adj. Contrary in tendency or direction.
- inversion Dictionary lookup
n. Change of order so that the first shall become last and the last first.
- invert Dictionary lookup
v. To turn inside out, upside down, or in opposite direction.
- investigator Dictionary lookup
n. One who investigates.
- investor Dictionary lookup
n. One who invests money.
- inveterate Dictionary lookup
adj. Habitual.
- invidious Dictionary lookup
adj. Showing or feeling envy.
- invigorate Dictionary lookup
v. To animate.
- invincible Dictionary lookup
adj. Not to be conquered, subdued, or overcome.
- inviolable Dictionary lookup
adj. Incapable of being injured or disturbed.
- invoke Dictionary lookup
v. To call on for assistance or protection.
- involuntary Dictionary lookup
adj. Unwilling.
- involution Dictionary lookup
n. Complication.
- involve Dictionary lookup
v. To draw into entanglement, literally or figuratively.
- invulnerable Dictionary lookup
adj. That can not be wounded or hurt.
- inwardly Dictionary lookup
adv. With no outward manifestation.
- iota Dictionary lookup
n. A small or insignificant mark or part.
- irascible Dictionary lookup
adj. Prone to anger.
- irate Dictionary lookup
adj. Moved to anger.
- ire Dictionary lookup
n. Wrath.
- iridescence Dictionary lookup
n. A many-colored appearance.
- iridescent Dictionary lookup
adj. Exhibiting changing rainbow-colors due to the interference of the light.
- irk Dictionary lookup
v. To afflict with pain, vexation, or fatigue.
- irksome Dictionary lookup
adj. Wearisome.
- irony Dictionary lookup
n. Censure or ridicule under cover of praise or compliment.
- irradiance Dictionary lookup
n. Luster.
- irradiate Dictionary lookup
v. To render clear and intelligible.
- irrational Dictionary lookup
adj. Not possessed of reasoning powers or understanding.
- irreducible Dictionary lookup
adj. That can not be lessened.
- irrefragable Dictionary lookup
adj. That can not be refuted or disproved.
- irrefrangible Dictionary lookup
adj. That can not be broken or violated.
- irrelevant Dictionary lookup
adj. Inapplicable.
- irreligious Dictionary lookup
adj. Indifferent or opposed to religion.
- irreparable Dictionary lookup
adj. That can not be rectified or made amends for.
- irrepressible Dictionary lookup
adj. That can not be restrained or kept down.
- irresistible Dictionary lookup
adj. That can not be successfully withstood or opposed.
- irresponsible Dictionary lookup
adj. Careless of or unable to meet responsibilities.
- irreverence Dictionary lookup
n. The quality showing or expressing a deficiency of veneration, especially for sacred things.
- irreverent Dictionary lookup
adj. Showing or expressing a deficiency of veneration, especially for sacred things.
- irreverential Dictionary lookup
adj. Showing or expressing a deficiency of veneration, especially for sacred things.
- irreversible Dictionary lookup
adj. Irrevocable.
- irrigant Dictionary lookup
adj. Serving to water lands by artificial means.
- irrigate Dictionary lookup
v. To water, as land, by ditches or other artificial means.
- irritable Dictionary lookup
adj. Showing impatience or ill temper on little provocation.
- irritancy Dictionary lookup
n. The quality of producing vexation.
- irritant Dictionary lookup
n. A mechanical, chemical, or pathological agent of inflammation, pain, or tension.
- irritate Dictionary lookup
v. To excite ill temper or impatience in.
- irruption Dictionary lookup
n. Sudden invasion.
- isle Dictionary lookup
n. An island.
- islet Dictionary lookup
n. A little island.
- isobar Dictionary lookup
n. A line joining points at which the barometric pressure is the same at a specified moment.
- isochronous Dictionary lookup
adj. Relating to or denoting equal intervals of time.
- isolate Dictionary lookup
v. To separate from others of its kind.
- isothermal Dictionary lookup
adj. Having or marking equality of temperature.
- itinerant Dictionary lookup
adj. Wandering.
- itinerary Dictionary lookup
n. A detailed account or diary of a journey.
- itinerate Dictionary lookup
v. To wander from place to place.