| grey(adjective, dull, lead, leaden, mousy) |
| gray(adjective, dull, dark, gloomy, dirty) |
| dingy(adjective, dull, lead, dirty, gray) |
| muddy(adjective, nasty, dark, gloomy, dirty) |
| sooty(adjective, uncleanness, hazy) |
| cloudy(adjective, dull, obscure, dark, gloomy) |
| opaque(adjective, muddy, clouded) |
| thick(adjective, uncleanness, hazy, sooty) |
| dull(adjective, obscure, dark, gloomy, dim) |
| foggy(adjective, dull, obscure, dark, gloomy) |
| gloomy(adjective, dull, dark, gray, dense) |
| leaden(adjective, dull, lead, grim, gray) |
| ashen(adjective, dull, lead, gray, leaden) |
| hazy(adjective, cloudy) |
| smoking |
| murky(adjective, dull, obscure, dark, gloomy) |
| vaporous(adjective, hazy, sooty) |
| dirty(adjective, nasty, dark, gloomy, dreary) |
| burning(adjective, hazy, sooty) |
| dreary(adjective, dark, gloomy, dirty, stale) |