| dull(adjective, light, simple, flat, excite) |
| dim(adjective, dull, light, blue) |
| drab(adjective, dull, simple, blue, excite) |
| flat(adjective, dull, light, simple, excite) |
| lifeless(adjective, dull, weak, simple, flat) |
| dreary(adjective, dull, blue, dark) |
| somber(adjective, blue, depression, woe) |
| spiritless(adjective, dull, excite, boring) |
| blah(adjective, dull, simple, flat, low) |
| gloomy(adjective, dull, blue, dark) |
| zero(adjective, dull, simple, flat, clean) |
| cheerless(adjective, blue, depression, woe) |
| desolate(adjective, blue, depression, woe) |
| indifferent(adjective, dull, flat, low) |
| lackadaisical(adjective, dull, flat, low) |
| languid(adjective, dull, mean, weak, flat) |
| low-spirited(adjective, blue, depression, woe) |
| low spirited(adjective, blue, depression, woe) |
| tame(adjective, dull, simple, flat, clean) |
| apathetic(adjective, dull, flat, low) |