| cheerless(adjective, dull, obscure, dark, gloomy) |
| darkness |
| darksome |
| deep |
| desolate(dull, obscure, dark, dim, black) |
| dismal(adjective, dull, obscure, dark, gloomy) |
| dreary(adjective, dull, dark, gloomy, dirty) |
| duskish |
| faded(adjective, dull, dark, gloomy, faint) |
| flat(adjective, dull, dark, gloomy, faint) |
| fuzzy(adjective, dull, dark, gloomy, dirty) |
| gray(adjective, dull, dark, gloomy, dirty) |
| ill-defined(adjective, dull, dark, gloomy, faint) |
| joyless(dull, obscure, dark, gloomy, dim) |
| lackluster(adjective, dull, dark, gloomy, faint) |
| lugubrious(dull, dark, gloomy, dim, depressing) |
| mat(adjective, dull, dark, gloomy, faint) |
| monotone(adjective, dull, dark, gloomy, faint) |
| monotonous(adjective, dull, dark, gloomy, faint) |
| muted(adjective, dull, dark, gloomy, faint) |