| colorless(adjective, dull, simple, soft, obscure) |
| decumbent(adjective, smooth, level, small, down) |
| dim(adjective, dull, quiet, light, soft) |
| empty(adjective, smooth, poor, level, trivial) |
| firm(noun, adjective, change, certain, definite) |
| heavy(adjective, dull, ordinary, dry, boring) |
| ho-hum(adjective, dull, weak, smooth, simple) |
| lackluster(adjective, dull, light, simple, excite) |
| mild(adjective, dull, quiet, weak, kind) |
| needy(adjective, poor, low, informal, exhausted) |
| ordinary(adjective, dull, set, simple, plain) |
| out-and-out(adjective, complete, total, big, limited) |
| planar(adjective, smooth, informal, level, even) |
| poor(adjective, weak, low, thin, delicate) |
| positive(adjective, complete, informal, energetic, big) |
| procumbent(adjective, smooth, level, down, lying) |
| slow(adjective, dullness, weariness, physical inertness) |
| sluggish(adjective, calm, dull, quiet, slow) |
| trite(adjective, dull, set, hard, simple) |
| unpalatable(adjective, good, dull, weak, nasty) |