| nebulous(adjective, dull, dark, gloomy, dim) |
| obfuscous(adjective, dull, dark, gloomy, dim) |
| opaque(adjective, dull, dark, gloomy, dim) |
| pitch-black(adjective, dull, dark, gloomy, dim) |
| pitch-dark(adjective, dull, dark, gloomy, dim) |
| pitchy(adjective, dull, dark, gloomy, dim) |
| plutonic(adjective, syrupy, jellied, solidified) |
| rayless(adjective, dull, dark, gloomy, dim) |
| shaded(adjective, dull, dark, gloomy, dim) |
| shadowy(adjective, dull, dark, gloomy, dim) |
| shady(adjective, dull, dark, gloomy, dim) |
| sombre |
| sooty(adjective, dull, dark, gloomy, dim) |
| stygian(adjective, dull, dark, gloomy, dim) |
| sunless(adjective, dull, dark, gloomy, dim) |
| tenebrific |
| unlighted(adjective, dull, dark, gloomy, dim) |
| vague(adjective, dull, dark, gloomy, dim) |
| abyssal |
| arthritic(adjective, syrupy, jellied) |