Open English Wordnet
Adjectives
(s)obscure, vaguenot clearly expressed or understood“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) (a)undefined, vaguenot precisely limited, determined, or distinguished“an undefined term”,
“undefined authority”,
“some undefined sense of excitement”,
“vague feelings of sadness”,
“a vague uneasiness” (s)dim, faint, shadowy, vague, wispylacking 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”