| mushy(dull, obscure, cloudy, hazy) |
| obfuscous(adjective, dull, obscure, dark, gloomy) |
| pitch-black(adjective, dull, dark, gloomy) |
| pitch-dark(adjective, dull, dark, gloomy) |
| pitchy(adjective, dull, dark, gloomy) |
| rayless(adjective, dull, dark, gloomy) |
| somber(adjective, dull, dark, gloomy) |
| sooty(adjective, dull, dark, gloomy) |
| stygian(adjective, dull, dark, gloomy) |
| sunless(adjective, dull, dark, gloomy) |
| unlighted(adjective, dull, dark, gloomy) |
| unlit(adjective, dull, dark, gloomy) |
| bland(adjective, dull, weak, soft, gentle) |
| delicate(adjective, dull, weak, soft, gentle) |
| faded(adjective, dull, weak, soft, gentle) |
| muted(adjective, dull, weak, soft, gentle) |
| cimmerian(adjective, dull, dark, gloomy) |
| moderate(adjective, dull, weak, soft, gentle) |
| smoggy(dull, obscure, unstable, cloudy) |
| soupy(dull, obscure, cloudy, hazy) |