| calm(adjective, quiet, relaxed, casual, peaceful) |
| quiet(adjective, calm, relaxed, restrained, casual) |
| cool(adjective, calm, casual, peaceful, tranquil) |
| serene(adjective, calm, quiet, relaxed, restrained) |
| tranquil(adjective, calm, quiet, relaxed, restrained) |
| peaceful(adjective, calm, unconcerned, tranquil) |
| placid(adjective, calm, quiet, relaxed, casual) |
| still(adjective, calm, peaceful, unconcerned, tranquil) |
| undisturbed(adjective, calm, peaceful, unconcerned, tranquil) |
| composed(adjective, calm, quiet, relaxed, restrained) |
| relaxed(adjective, calm, quiet, casual, unruffled) |
| unperturbed(adjective, calm, peaceful, unconcerned, tranquil) |
| halcyon(adjective, calm, peaceful, unconcerned, tranquil) |
| pacific |
| smooth |
| unexcited(adjective, calm, quiet, relaxed, casual) |
| unruffled(adjective, calm, quiet, relaxed, restrained) |
| untroubled(adjective, calm, peaceful, tranquil) |
| silent |
| steady(adjective, calm, peaceful, unconcerned, tranquil) |