| dun(adjective, dull, soft, obscure, flat) |
| dungy(adjective, nasty, foul, sloppy, filthy) |
| faded(adjective, soft, obscure, flat, dark) |
| faint(adjective, dull, dark, gloomy, dim) |
| foggy(adjective, dull, dark, gloomy, dim) |
| fouled(adjective, nasty, foul, sloppy, filthy) |
| greasy(adjective, nasty, foul, sloppy, filthy) |
| ill-lighted(adjective, dull, dark, gloomy, dim) |
| impure |
| indistinct(adjective, dull, soft, obscure, flat) |
| lurid(adjective, dull, dark, gloomy, dim) |
| mung(adjective, nasty, foul, sloppy, filthy) |
| nasty(adjective, dirty, foul, sloppy, filthy) |
| nebulous(adjective, dull, dark, gloomy, dim) |
| onyx(adjective, black, colors) |
| overcast(adjective, dull, soft, obscure, flat) |
| pallid(adjective, gray, hazy, shiny, silver) |
| pearly(adjective, gray, hazy, shiny, silver) |
| pigpen(adjective, nasty, foul, sloppy, filthy) |
| rayless(adjective, dull, dark, gloomy, dim) |