| impersonal(adjective, calm, cool, tough, cold) |
| insensible(adjective, hard, cool, tough, severe) |
| lackadaisical(adjective, calm, cool, relaxed, detached) |
| lukewarm(adjective, calm, mean, hard, cool) |
| matter-of-fact(adjective, calm, dull, cool, excite) |
| neutral(adjective, calm, quiet, cool, moderate) |
| numb(adjective, hard, tough, severe, cold) |
| obdurate(adjective, mean, hard, cool, tough) |
| remote(adjective, cool, indifferent, restrained, detached) |
| serene(adjective, calm, quiet, cool, moderate) |
| spiritless(adjective, hard, cool, unfriendly, blank) |
| undisturbed(adjective, quiet, cool, moderate, gentle) |
| unflappable(adjective, calm, quiet, cool, moderate) |
| unimpassioned(adjective, cool, tough, rational, straightforward) |
| dry(adjective, calm, dull, cool, tough) |
| dull(adjective, calm, tough, flat, rational) |
| glacial(adjective, cool, detached, hostile, unfriendly) |
| passive(adjective, calm, dull, flat, indifferent) |
| philosophical(adjective, calm, quiet, relaxed, casual) |
| pococurante(adjective, cold, dead, apathy, passive) |