| dispassionate(adjective, calm, quiet, cool, moderate) |
| phlegmatic(adjective, calm, dull, cool, weak) |
| unemotional(adjective, calm, quiet, mean, hard) |
| easygoing(adjective, feature, state, calm, cool) |
| unsympathetic(adjective, mean, hard, cool, careless) |
| worry-free(adjective, feature, state, trait) |
| incurious(adjective, calm, hard, cool, concern) |
| negligent(noun, adjective, feature, state, calm) |
| stoic(adjective, calm, cool, indifferent, blank) |
| unfeeling(adjective, calm, mean, hard, cool) |
| distant(adjective, cool, cold, indifferent, detached) |
| lukewarm(adjective, calm, mean, hard, cool) |
| perfunctory(adjective, relaxed, cold, indifferent, detached) |
| callous(adjective, calm, mean, hard, cool) |
| insensible(adjective, hard, cool, temper, careless) |
| unmindful(noun, adjective, sharp, rude, careless) |
| calm(adjective, feature, state, quiet, cool) |
| stolid(adjective, calm, cool, indifferent, feelings) |
| thoughtless(adjective, feature, state, sharp, rude) |
| uninvolved(adjective, calm, concern, attitude, indifferent) |