funereal, depressing, dimmed, dull, depressive, tenebrific, Cimmerian, blurry, undefined, disconsolate, roily, dire, pitch-dark, elliptical, unlit, evil, desolate, gross, drear, bleak, pitchy, fuliginous, darksome, chill, lonesome, roiled, rayless, flat, stygian, stormy, forlorn, morose, godforsaken, overcast, cheerless, immoral, quaggy, wretched, ambiguous, lonely, nebulous, mysterious, caliginous, darkish, deviant, befogged, clear, enigmatic, sepulchral, wicked, cryptic, plutonian, pitch-black, indistinguishable, sloughy, soggy, gray, deep, occult, dusk, comfortless, marshy, morbid, cold, waterlogged, inscrutable, darkling, brumous, miry, amoral, turbid, glum, drab, tenebrous, perverted, light, sinful, swampy, saturnine, elegiac, unethical, undetermined, darkening, muddied, boggy, clouded, indefinite, squashy, dreich, mirky, beclouded, sable, soupy, nebulose, Delphic, smoggy, sad, equivocal, solemn, sullen, miserable, obscured, colors, swart, arcane, mystic, double-edged, lugubrious, blear, pale, sunless
darkness (part of speech: noun)
dim (part of speech: adjective)
dark (part of speech: adjective)
opaque (part of speech: adjective)
unclean (part of speech: adjective)
grungy, septic, filthy, fetid, scatological, defiled, mucky, foul, insalubrious, odious, unclean, shabby, sordid, grubby, infectious, icky, squalid, grimy, unhygenic, smutty, scruffy, untidy, festering, dusty, disgusting, sloppy, putrid, dirty, unsanitary, impure, crummy, slovenly, muddy, offensive, obscene, toxic, dingy
semitransparent (part of speech: adjective)
- The other one is Murky! - "The Auto Boys' Mystery", James A. Braden.
- The sky now assumed a different appearance- the white clouds had been exchanged for others dark and murky, the wind roared at intervals, and the rain came down in torrents. - "Mr. Midshipman Easy", Captain Frederick Marryat.
- But he flung it down again, taking the ax in its place, pushing his woman, not without some tenderness in his hand, back into the corner, throwing himself in front of her, his wild laugh ringing in the murky room, stifling from the smoke of lantern and stove. - "The Flockmaster of Poison Creek", George W. Ogden.