not precisely limited, determined, or distinguished; an undefined term; undefined authority; some undefined sense of excitement; vague feelings of sadness; a vague uneasiness

[ Syn: undefined ]

not clearly understood or expressed; an obscure turn of phrase; an impulse to go off and fight certain obscure battles of his own spirit-Anatole Broyard; their descriptions of human behavior become vague, dull, and unclear- P.A.Sorokin; vague...forms of speech...have so long passed for mysteries of science- John Locke

[ Syn: obscure ]

lacking clarity or distinctness; a dim figure in the distance; only a faint recollection; shadowy figures in the gloom; saw a vague outline of a building through the fog; a few wispy memories of childhood

[ Syn: dim , faint , shadowy , wispy ]