| amiable(adjective, calm, quiet, cool, soft) |
| antisocial(adjective, person) |
| apart(adjective, indifferent, detached, distant, remote) |
| at ease(expression, adjective, happy, relaxed, cheerful) |
| benign(adjective, calm, quiet, cool, soft) |
| biddable(adjective, calm, quiet, cool, soft) |
| bland(adjective, calm, quiet, cool, soft) |
| blank(adjective, cool, detached, sober, unfeeling) |
| blase(adjective, calm, cool, informal, relaxed) |
| bubbly(adjective, feature, state, trait) |
| candid(adjective, calm, detached, sober, unfeeling) |
| ceremonious(adjective, cold, modest, unfriendly, aloof) |
| chill(adjective, cool, detached, blank, sober) |
| chirpy(adjective, feature, state, trait) |
| cold(adjective, calm, cool, relaxed, indifferent) |
| cold-blooded(adjective, calm, cool, detached, blank) |
| cold-fish(adjective, calm, detached, sober, unfeeling) |
| cold fish(expression, adjective, cool, indifferent, detached) |
| collected(adjective, calm, cool, relaxed, detached) |
| colloquial(adjective, simple, relaxed, straightforward, casual) |