| smug(adjective, calm, cool, steady, unaffected) |
| soothed(adjective, calm, relaxed, tranquil, easygoing) |
| speechless(adjective, astonished, thunderstruck, flabbergasted) |
| staid(adjective, calm, cool, relaxed, tranquil) |
| steady(adjective, calm, cool, reasonable, sensible) |
| stiff upper lip(expression, adjective, idiom, calm, cool) |
| stoical(adjective, calm, cool, restrained, steady) |
| suppressed(adjective, calm, relaxed, tranquil, easygoing) |
| sure of oneself(expression, adjective, idiom, calm, relaxed) |
| temperate(adjective, calm, quiet, cool, moderate) |
| together(adjective, calm, reasonable, sensible, relaxed) |
| tranquil(adjective, calm, quiet, cool, relaxed) |
| unaffected(adjective, calm, cool, steady, collected) |
| unconcerned(adjective, calm, quiet, cool, moderate) |
| undisturbed(adjective, calm, quiet, cool, moderate) |
| unemotional(adjective, calm, quiet, cool, moderate) |
| unexcitable(adjective, calm, quiet, cool, moderate) |
| unexcited(adjective, quiet, cool, moderate, gentle) |
| unimpressed(adjective, quiet, cool, moderate, gentle) |
| unmoved(adjective, calm, quiet, cool, moderate) |