| casual(adjective, feature, state, calm, cool) |
| cool(adjective, feature, state, calm, quiet) |
| unconcerned(adjective, feature, state, calm, quiet) |
| happy-go-lucky(adjective, feature, state, happy, care) |
| insouciant(adjective, feature, state, calm, cool) |
| mild(adjective, feature, state, calm, quiet) |
| unperturbed(adjective, calm, quiet, cool, easy) |
| clear(adjective, calm, light, weak, smooth) |
| airy(adjective, feature, state, calm, cool) |
| carefree(adjective, feature, state, calm, quiet) |
| peaceable(adjective, calm, quiet, smooth, soft) |
| at ease(expression, adjective, idiom, calm, quiet) |
| blithe(adjective, feature, state, happy, care) |
| composed(adjective, calm, quiet, light, cool) |
| devil-may-care(adjective, feature, state, care, trait) |
| easygoing(adjective, feature, state, calm, quiet) |
| secure(verb, adjective, calm, quiet, light) |
| cloudless |
| easy-going(adjective, feature, state, happy, care) |
| free and easy(adjective, feature, state, care, trait) |