| unstirred(adjective, calm, mean, hard, cool) |
| adamant(adjective, cold, indifferent, determined, fixed) |
| cold-blooded(adjective, calm, mean, hard, cool) |
| collected(adjective, calm, quiet, cool, moderate) |
| stony(adjective, mean, hard, cool, unpleasant) |
| unruffled(adjective, calm, quiet, cool, moderate) |
| insensible(adjective, cool, temper, cold, indifferent) |
| undisturbed(adjective, calm, quiet, cool, moderate) |
| unfeeling(adjective, calm, mean, hard, cool) |
| unmotivated(adjective, uninspired) |
| callous(adjective, calm, mean, hard, cool) |
| steadfast(adjective, calm, cold, indifferent, determined) |
| stolid(adjective, calm, cool, indifferent, blank) |
| determined(adjective, firm, fixed, stubborn) |
| imperturbable(adjective, calm, quiet, cool, moderate) |
| lackadaisical(adjective, dull, flat, low, sad) |
| lukewarm(adjective, calm, mean, hard, cool) |
| phlegmatic(adjective, calm, cool, indifferent, detached) |
| unimpressed(adjective, calm, dull, quiet, cool) |
| uninterested(adjective, temper, cold, indifferent, negative) |