| fuliginous(adjective, dirty) |
| grungy(adjective, nasty, dirty, foul, sloppy) |
| jet-black |
| muddy(adjective, soft, obscure, flat, nasty) |
| obscure(adjective, dull, soft, flat, dark) |
| opaque(adjective, dull, soft, obscure, flat) |
| pitch-black(adjective, dull, dark, gloomy, dim) |
| soiled(adjective, nasty, dirty, foul, sloppy) |
| somber(adjective, dull, soft, obscure, flat) |
| coal-black |
| blackish(adjective, dull, dark, gloomy, dim) |
| darkened(adjective, dull, dark, gloomy, dim) |
| foul(adjective, nasty, dirty, sloppy, filthy) |
| lightless(adjective, dull, dark, gloomy, dim) |
| pitch |
| shaded(adjective, dull, dark, gloomy, dim) |
| shady(adjective, dull, dark, gloomy, dim) |
| slovenly(adjective, nasty, dirty, foul, sloppy) |
| tenebrous(adjective, dull, dark, gloomy, dim) |
| atramentous(adjective, dull, obscure, dark, gloomy) |