- oaf Dictionary lookup
(n.) a clumsy, dumb person
The waiter has been called an oaf ever since he dropped the tray.
- obdurate Dictionary lookup
The obdurate child refused to go to school.
The obdurate youngster refused to eat the Brussels sprouts.
- obeisance Dictionary lookup
(n.) a gesture of respect or reverence
As an obeisance, the man took off his hat as the funeral procession drove past him.
- obfuscate Dictionary lookup
(v.) to darken, confuse, bewilder
The lunar eclipse will obfuscate the light of the sun.
- objurgate Dictionary lookup
(v.) to chide vehemently
The girls disliked those boys who objurgated the group.
- obligatory Dictionary lookup
(adj.) mandatory; necessary; legally or morally binding
In order to provide a reliable source of revenue for the government, it is obligatory for each citizen to pay taxes.
- obloquy Dictionary lookup
(n.) widespread condemnation or abuse; disgrace or infamy resulting from this.
The child suffered quite an obloquy at the hands of his classmates.
Lawyers must face frequent obloquy with their reputation as "ambulance chasers."
- obscure Dictionary lookup
(adj.) not easily understood; dark
The orchestra enjoys performing obscure American works, hoping to bring them to a wider audience.
- obstinate Dictionary lookup
Her father would not allow her to stay out past midnight; she thought he was obstinate because he would not change his mind.
- obviate Dictionary lookup
(v.) to make unnecessary
The invention of cars has obviated the use of horse and carriage.
A cure for the common cold would obviate the need for shelf after shelf of cold remedies.
- occult Dictionary lookup
(adj.) hidden; beyond human understanding; mystical; mysterious
The occult meaning of the message was one of dislike for the authorities.
Some spend years pursuing the occult, only to find themselves no closer to the answer.
Relating to the occult world means entering a new realm.
- odious Dictionary lookup
(adj.) hateful; disgusting
Having to chaperone her brother was an odious chore for the girl.
- odium Dictionary lookup
(n.) a hate; the disgrace from a hateful action
Odium could be felt for the man who destroyed the school.
- oligarchy Dictionary lookup
(n.) form of government in which the supreme power is placed in the hands of a small, exclusive group.
The oligarchy took control after the king was overthrown.
- ominous Dictionary lookup
Seeing ominous clouds on the horizon, the street fair organizers decided to fold up their tent and go home.
- omniscient Dictionary lookup
(adj.) having knowledge of all things
The future can be told by the omniscient woman.
- opalescent Dictionary lookup
Her new nail polish was opalescent making her finger tips look like pearls.
- opaque Dictionary lookup
(adj.) dull; cloudy; non-transparent
Not having been washed for years, the once beautiful windows of the Victorian home became opaque.
They chose an opaque shade of green for their bathroom walls.
- opprobrious Dictionary lookup
Nobody liked working for him because he was so opprobrious.
- opulence Dictionary lookup
(n.) wealth; fortune
A 40-room mansion on 65 wooded acres is only the most visible sign of her opulence.
- ornate Dictionary lookup
(adj.) elaborate; lavish; decorated
The courthouse was framed by ornate friezes.
- oscillate Dictionary lookup
(v.) to move back and forth; to have a wavering opinion
The oscillating sprinkler system covered the entire lawn.
The couple often oscillates between going out and staying home.
- ossify Dictionary lookup
(v.) to turn to bone; to harden
Over time, the plant matter has ossified.
The tablet will ossify when left in the sun.
- ostensible Dictionary lookup
The ostensible reason for choosing the girl was for her beauty.
- ostracize Dictionary lookup
(v.) to exclude
The students tend to ostracize the children they dislike from their games.
- oust Dictionary lookup
(v.) drive out; eject
The dictator was ousted in a coup detat.