| laid-back(adjective, calm, restrained, unconcerned, subdued) |
| lukewarm(adjective, calm, mean, hard, cool) |
| not influenced(expression, adjective, calm, restrained, unconcerned) |
| plain(adjective, calm, restrained, subdued, impassive) |
| proof(adjective, calm, restrained, unconcerned, subdued) |
| repellent(adjective, mean, hard, unsympathetic) |
| sanitary(unconcerned, unaffected, spotless, intact, unmoved) |
| shipshape(unconcerned, unaffected, spotless, intact, unmoved) |
| steady(adjective, calm, restrained, peaceful, unconcerned) |
| stolid |
| stony-hearted |
| temperate |
| thick-skinned(adjective, calm, restrained, unconcerned, subdued) |
| unaltered(adjective, calm, restrained, unconcerned, subdued) |
| unanimated |
| unblushing |
| unchanged(adjective, calm, restrained, unconcerned, subdued) |
| uncongenial(adjective, mean, hard, unsympathetic) |
| uninfluenced(adjective, calm, restrained, unconcerned, subdued) |
| unkind(adjective, mean, hard, unsympathetic) |