amorphousness, bad light, becloud, bedarken, bedim, begloom, begrime, besmirch, besoil, black, black out, blacken, blackwash, block the light, blot, blot out, blotch, brown, cast a shadow, charcoal, cloud, cloud over, cork, dark, darken, darken over, darkishness, darkness, darksomeness, deadness, denigrate, dim, dim light, dim out, dimness, dinge, dirty, drabness, dullness, dusk, duskiness, duskness, ebonize, eclipse, encloud, encompass with shadow, flatness, fog, fogginess, foul, fuzziness, gloaming, gloom, grime, half-light, haze, indeterminateness, indistinctness, ink, lack of sparkle, lackluster, lifelessness, lusterlessness, mat, mat finish, melanize, mist, mistiness, muddy, mumbo jumbo, murkiness, mystification, nigrify, obfuscate, obfuscation, obnubilate, obscurantism, obscuration, obscure, obscurity, obumbrate, occult, occultate, opacity, overcast, overcloud, overshadow, oversmoke, partial darkness, perplexity, semidark, shade, shadow, shapelessness, smirch, smoke, smudge, smut, smutch, somber, somberness, soot, tarnish, twilight, unclarity, unclearness, unplainness, vagueness