| blur(verb, dull, cover, hurt, reduce) |
| contaminate(verb, dull, spoil, dirty, foul) |
| faint(adjective, reduce, diminish, unclear, indistinct) |
| flat(adjective, dark, cloudy, colors) |
| fog(noun, verb, cover, reduce, lower) |
| foggy(adjective, dark, gloomy, gray, dense) |
| messy(adjective, nasty, dirty, foul, sloppy) |
| nasty(adjective, dark, gloomy, dirty, foul) |
| pale(verb, adjective, dull, reduce, diminish) |
| roily(adjective, clear, dark, gloomy, cloudy) |
| slovenly(adjective, nasty, dirty, foul, sloppy) |
| smirch(verb, dirty, foul, stain, smear) |
| stain(verb, dull, hurt, harm, spoil) |
| becloud(verb, cover, reduce, lower, obscure) |
| begrimed(verb, adjective, nasty, dirty, foul) |
| bemire(verb, clean, soil) |
| bemired(adjective, dark, cloudy, murky) |
| confuse(verb, cover, obscure, hide, conceal) |
| indeterminate(adjective, obscure, uncertain, vague, unclear) |
| mire(noun, verb, clean, soil) |