| impassive(adjective, dull, hard, cool, weak) |
| insipid(adjective, dull, weak, kind, soft) |
| lethargic(adjective, dull, weak, easy, slow) |
| meek(adjective, calm, quiet, kind, smooth) |
| dejected(adjective, low, happy, sad, unhappy) |
| dry(adjective, dull, cool, flat, excite) |
| feeble(adjective, dull, weak, kind, soft) |
| frigid(adjective, cool, flat, cold, aloof) |
| limp(adjective, action, dull, weak, easy) |
| melancholy(adjective, blue, low, happy, sad) |
| unconcerned(adjective, dull, hard, cool, weak) |
| vapid(adjective, dull, weak, kind, soft) |
| aloof(adjective, cool, unfriendly, blank, distant) |
| boring(adjective, dull, quiet, weak, flat) |
| despondent(adjective, blue, low, sad, unhappy) |
| dismal(adjective, sad, unhappy, miserable, hopeless) |
| down(adjective, blue, low, happy, sad) |
| enervated(adjective, dull, weak, easy, sad) |
| heartless(adjective, hard, cool, careless, indifferent) |
| inactive(adjective, dull, quiet, weak, easy) |