| unclear(adjective, obscure, rough, difficult, dark) |
| overcast(adjective, dull, obscure, dark, sorrow) |
| sullen(adjective, upset, sorrow, depress, sadness) |
| Stygian(adjective, dull, dark, gloomy, dim) |
| ambiguous(adjective, obscure, dark, uncertain, vague) |
| clouded(adjective, dull, dark, gloomy, dim) |
| crepuscular(adjective, dull, obscure, dark, gloomy) |
| dull(adjective, upset, obscure, dark, gloomy) |
| equivocal(adjective, obscure, rough, difficult, dark) |
| faint(adjective, dull, rough, dark, gloomy) |
| foggy(adjective, dull, rough, dark, gloomy) |
| lightless(adjective, dull, obscure, dark, gloomy) |
| pitch-black(adjective, dull, dark, gloomy, dim) |
| pitch-dark(adjective, dull, dark, gloomy, dim) |
| pitchy(adjective, dull, dark, gloomy, dim) |
| unintelligible(adjective, obscure, rough, difficult, dark) |
| unlighted(adjective, dull, dark, gloomy, dim) |
| cheerless(adjective, sorrow, depress, sadness, emotion) |
| dreary(adjective, dull, dark, sorrow, gloomy) |
| tenebrious |