The Oxford Thesaurus An A-Z Dictionary of Synonyms - dim adj.

1) obscure, obscured, vague, faint, weak, weakened, pale, imperceptible, fuzzy, indistinct, ill-defined, indiscernible, undefined, indistinguishable, foggy, clouded, cloudy, nebulous, blurred, blurry, unclear, dull, hazy, misty, dark, shadowy, murky, tenebrous, gloomy, sombre, dusky, crepuscular: Her beauty made The bright world dim. We could barely see in the dim light of the cave. 2) stupid, obtuse, doltish, dull, dull-witted, foolish, slow-witted, dim-witted, dense, Colloq thick, dumb: Anyone who can't understand that is really quite dim. --v. 3) obscure, dull, becloud: His natural feelings of compassion had been dimmed by neglect. 4) darken, bedim, shroud, shade: Twilight dims the sky above. The stage-lights dimmed and the curtain fell.