THESAURUS
darkish
blackish, dark, dark-colored, darksome, dim, dimmish, dimpsy, dusk, dusky, funereal, grave, murk, murksome, murky, nigrescent, sad, semidark, sober, somber, sombrous, subfusc, swart, swarthy
ROGET THESAURUS
darkish
Dimness
N
dimness, darkness, paleness, half light, demi-jour, partial shadow, partial eclipse, shadow of a shade, glimmer, gliming, nebulosity, cloud, eclipse, aurora, dusk, twilight, shades of evening, crepuscule, cockshut time, break of day, daybreak, dawn, moonlight, moonbeam, moonglade, moonshine, starlight, owl's light, candlelight, rushlight, firelight, farthing candle, dim, dull, lackluster, dingy,
darkish, shorn of its beams, dark, faint, shadowed forth, glassy, cloudy, misty, blear, muggy, fuliginous, nebulous, nebular, obnubilated, overcast, crepuscular, muddy, lurid, leaden, dun, dirty, looming, pale, confused.