What is another word for "murky"?

Roget's Thesaurus (1911) lists these synonyms for "murky": atramentous, black, blackamoor, blacken, blackness, blot, blotch, buck, charcoal, chiaroscuro, cloud, cloudiness, cloudy, coal, coal-black, color, coon, crow, dark, darken, darkness, denigrate, derogatory, dim, dingy, dirty, dusky, dye, ebon, ebony, film, fog, foggy, for, fuliginous, fumid, gray, hat, haze, haziness.