| just(adjective, calm, detached, sober, unfeeling) |
| kindly(adjective, calm, quiet, cool, soft) |
| lackadaisical(adjective, calm, cool, informal, relaxed) |
| laughing(adjective, feature, state, trait) |
| lay back(verb, expression, phrasal verb, calm, dull) |
| lenient(adjective, calm, quiet, cool, soft) |
| lifeless(adjective, boring, puny, lackluster, muted) |
| light-hearted(adjective, feature, state, trait) |
| listless(adjective, calm, cool, gentle, relaxed) |
| loner(adjective, indifferent, detached, distant, remote) |
| loose(verb, adjective, calm, release, cool) |
| low-pressure(adjective, simple, easy, plain, relaxed) |
| lukewarm(adjective, calm, cool, relaxed, detached) |
| lusterless(adjective, boring, lifeless, puny, lackluster) |
| manageable(adjective, calm, quiet, cool, soft) |
| matte(adjective, boring, lifeless, puny, lackluster) |
| matter-of-fact(adjective, cool, detached, blank, sober) |
| matter of fact(expression, adjective, idiom, detached, remote) |
| meek(adjective, calm, quiet, cool, soft) |
| mellow(adjective, calm, quiet, cool, simple) |