| nonchalant(adjective, calm, cool, relaxed, steady) |
| not turn a hair(expression, adjective, idiom, calm, relaxed) |
| patient(adjective, calm, quiet, cool, moderate) |
| placid(adjective, calm, quiet, cool, moderate) |
| pleased(adjective, quiet, cool, moderate, gentle) |
| poised(adjective, calm, quiet, cool, moderate) |
| possessed(adjective, calm, relaxed, tranquil, easygoing) |
| quiet(adjective, calm, cool, restrained, still) |
| quieted(adjective, calm, relaxed, tranquil, easygoing) |
| relaxed(adjective, calm, quiet, cool, moderate) |
| repressed(adjective, calm, relaxed, tranquil, easygoing) |
| restful(adjective, quiet, cool, moderate, gentle) |
| roll with punches(expression, adjective, idiom, calm, cool) |
| satisfied(adjective, quiet, cool, moderate, gentle) |
| sedate(adjective, calm, quiet, cool, moderate) |
| self-assured(adjective, calm, relaxed, tranquil, easygoing) |
| self-satisfied(adjective, calm, cool, steady, unaffected) |
| sensible(adjective, calm, reasonable, relaxed, tranquil) |
| serene(adjective, calm, quiet, cool, moderate) |
| serious(adjective, calm, cool, relaxed, tranquil) |