| ghastly(pale, white, colorless) |
| gray(adjective, dull, dark, gloomy, faint) |
| haggard(thin, pale, sickly-looking) |
| humdrum(adjective, dull, simple, clean, plain) |
| indifferent(adjective, dull, flat, low, sad) |
| jejune(adjective, dry, boring, tedious, monotonous) |
| lackadaisical(adjective, dull, flat, low, sad) |
| laid-back(adjective, dull, informal, weary, tired) |
| languid(adjective, dull, mean, weak, flat) |
| lightless(adjective, dull, dark, gloomy, faint) |
| low-spirited(adjective, blue, sad, depression, woe) |
| low spirited(adjective, blue, sad, depression, woe) |
| mediocre(adjective, ordinary) |
| nothing(adjective, dull, simple, flat, clean) |
| pasty(pale, white, colorless) |
| pedestrian(adjective, dull, simple, excite, clean) |
| prosy(adjective, dull, simple, flat, clean) |
| sallow(pale, white, colorless) |
| sickly(weak, thin, ill, feeble, pale) |
| sluggish(adjective, dull, weary, stiff, tired) |