| inexplicit(adjective, clear, certain, ambiguous) |
| inky(adjective, dull, dark, gloomy, dim) |
| milky(adjective, light, dim, pale, dense) |
| nebulose |
| Stygian(adjective, dull, dark, gloomy, dim) |
| ambiguous(adjective, clear, certain, uncertain, unclear) |
| bleak(adjective, dull, obscure, dark, gloomy) |
| crepuscular(adjective, dull, obscure, dark, gloomy) |
| disconsolate(adjective, sorrow, depress, sadness, emotion) |
| glum(adjective, sorrow, depress, sadness, emotion) |
| grim(adjective, sorrow, depress, sadness, emotion) |
| ill-lighted(adjective, dull, dark, gloomy, dim) |
| lugubrious(adjective, sorrow, depress, sadness, emotion) |
| lurid(adjective, dull, dark, sorrow, gloomy) |
| obfuscated(adjective, obscure) |
| roily(adjective, clear, dark, gloomy, muddy) |
| smoggy(adjective, dull, obscure, dim, hazy) |
| unintelligible(adjective, obscure, rough, vague, unclear) |
| veiled(adjective, semitransparent) |
| beclouded |