| somber(adjective, dull, soft, obscure, flat) |
| dusky(adjective, dull, cool, soft, obscure) |
| sunless(adjective, dull, dark, sorrow, gloomy) |
| blurry(adjective, dull, clear, obscure, property) |
| filmy(adjective, clear, light, dim, hazy) |
| fuzzy(adjective, dull, clear, obscure, rough) |
| turbid(adjective, clear, obscure, dark, gloomy) |
| muddy(adjective, dull, clear, soft, obscure) |
| shady(adjective, dull, cool, obscure, dark) |
| dreary(adjective, dull, dark, sorrow, gloomy) |
| heavy(adjective, dull, dark, gloomy, depressed) |
| lowering(adjective, sorrow, depress, sadness, emotion) |
| bleary(adjective, dull, clear, light, obscure) |
| faint(adjective, dull, clear, obscure, rough) |
| grey(adjective, dull, leaden, steely) |
| tenebrous(adjective, dull, obscure, rough, dark) |
| imprecise(adjective, obscure, rough, uncertain, faint) |
| amorphous(adjective, obscure, unclear, indistinct, indistinguishable) |
| darkened(adjective, dull, dark, gloomy, dirty) |
| lightless(adjective, dull, obscure, dark, gloomy) |