| aloof(adjective, calm, quiet, cool, moderate) |
| apathetic(adjective, calm, cool, relaxed, indifferent) |
| at peace(expression, adjective, calm, quiet, cool) |
| cheerful(verb, adjective, feature, state, calm) |
| contented(adjective, feature, state, calm, quiet) |
| bucolic(adjective, calm, quiet, cool, smooth) |
| cold-blooded(adjective, calm, cool, detached, blank) |
| coolheaded(adjective, calm, quiet, relaxed, casual) |
| cosy |
| deliberate(adjective, calm, quiet, cool, relaxed) |
| demure(adjective, calm, quiet, cool, gentle) |
| dignified(adjective, calm, cool) |
| easeful(adjective, calm, quiet, light, smooth) |
| equanimous(calm, cool, unflappable) |
| friendly(adjective, calm, quiet, peaceful, easygoing) |
| grave(adjective, calm, quiet, cool, reasonable) |
| hushed(adjective, calm, quiet, cool, smooth) |
| inert(adjective, calm, quiet, smooth, tranquil) |
| laid back(verb, expression, adjective, phrasal verb, feature) |
| lenient(adjective, calm, quiet, kind, soft) |