| apathetic(adjective, dull, weak, easy, flat) |
| indifferent(adjective, calm, dull, cool, weak) |
| lukewarm(adjective, calm, dull, cool, warm) |
| cool(adjective, calm, dull, warm, indifferent) |
| uninterested(adjective, dull, bad, weak, easy) |
| cold(adjective, calm, person, cool, indifferent) |
| unresponsive(adjective, calm, cool, indifferent, restrained) |
| nonchalant(adjective, indifferent, unconvinced, uninspired) |
| tepid(adjective, calm, cool, warm, attitude) |
| lackadaisical(adjective, dull, weak, easy, flat) |
| distant(adjective, cool, indifferent, restrained, unfriendly) |
| frigid(adjective, person, cool, indifferent, feelings) |
| halfhearted(adjective, dull, cool, warm, attitude) |
| phlegmatic(adjective, dull, cool, weak, easy) |
| unexcited(adjective, calm, cool, indifferent, enthusiastic) |
| chilly(adjective, person, cool, indifferent, feelings) |
| half-hearted(adjective, cool, weak, indifferent, apathetic) |
| listless(adjective, dull, weak, easy, flat) |
| passionless(adjective, cool, indifferent, unfriendly, aloof) |
| unconcerned(adjective, calm, dull, cool, weak) |