| ordinary(adjective, dull, simple, plain, common) |
| pale(adjective, dull, flat, gray, neutral) |
| same(adjective, dull, colorless) |
| sepia(adjective, dark, bay, buff, brown) |
| smoky(adjective, dull, lead, dark, gloomy) |
| spiritless(adjective, dull, weak, excite, stupid) |
| streetwalker |
| subfusc(adjective, soft, obscure, flat, dark) |
| sunless(adjective, dull, dark, gloomy, dim) |
| tart |
| taupe(adjective, gray) |
| tiring(adjective, dull, flat, stupid, boring) |
| toast(adjective, dark, bay, buff, brown) |
| unsightly(adjective, plain, unpleasant, ugly, pretty) |
| fawn(adjective, dark, bay, buff, brown) |
| foggy(adjective, dull, dark, gloomy, dim) |
| harridan(noun, libertine) |
| achromatic(adjective, dull, flat, pale, white) |
| ashen(adjective, dull, soft, obscure, lead) |
| bawd |