| dirty(adjective, dull, dark, gloomy, thick) |
| shapeless(adjective, obscure) |
| Cimmerian(adjective, dull, dark, gloomy, dim) |
| caliginous(adjective, dull, obscure, dark, gloomy) |
| darksome(adjective, sorrow, depress, sadness, emotion) |
| dense(adjective, gloomy, gray, muddy, hazy) |
| dun(adjective, dull, soft, obscure, flat) |
| dusk(adjective, dull, dark, gloomy, dirty) |
| fogged |
| formless(adjective, obscure, unclear, indistinct, indistinguishable) |
| gauzy(adjective, semitransparent) |
| grimy(adjective, dull, soft, obscure, flat) |
| louring |
| menacing |
| mushy(adjective, dull, obscure, gloomy, dim) |
| nubilous(adjective, dark, gloomy, gray, dense) |
| obscured(adjective, dull, dark, gloomy, faint) |
| overclouded(dull, dark, dim, black, depressing) |
| roiled(adjective, clear) |
| sad(adjective, dull, hard, difficult, dark) |