| peaceable(adjective, calm, quiet, serene, moderation) |
| restful(adjective, calm, quiet, cool, smooth) |
| self-controlled(adjective, calm, quiet, relaxed, casual) |
| unflurried(adjective, calm, tranquil, unperturbed) |
| comfortable(adjective, calm, quiet, smooth, easy) |
| phlegmatic(adjective, calm, quiet, cool, smooth) |
| poised(adjective, calm, quiet, cool, moderate) |
| silent(adjective, calm, quiet, smooth, tranquil) |
| unaffected(adjective, calm, cool, steady, collected) |
| unimpassioned(adjective, calm, quiet, reasonable, sensible) |
| at ease(expression, adjective, calm, quiet, easy) |
| bland(adjective, quiet, cool, smooth, soft) |
| easygoing(adjective, calm, quiet, cool, easy) |
| flat(adjective, quiet, soft, gentle, level) |
| hushed(adjective, calm, quiet, cool, smooth) |
| level-headed(adjective, calm, cool, smooth, steady) |
| levelheaded(adjective, calm, quiet, cool, reasonable) |
| measured(calm, easy, relaxed, comfortable, moderation) |
| patient(adjective, calm, quiet, cool, moderate) |
| quiescent(adjective, calm, quiet, cool, smooth) |