| insouciant |
| insusceptible(adjective, cool, blank, aloof, unemotional) |
| irritable |
| judicial(adjective, calm, detached, sober, unfeeling) |
| just(adjective, calm, detached, sober, unfeeling) |
| laid back(verb, expression, adjective, phrasal verb, calm) |
| leisurely |
| lenient(adjective, calm, quiet, easy, mild) |
| level headed |
| levelheaded(adjective, quiet, cool, moderate, gentle) |
| listless(adjective, calm, dull, quiet, cool) |
| low(adjective, calm, quiet, easy, mild) |
| marble(adjective, detached, impassive, unresponsive, insensitive) |
| matter-of-fact(adjective, calm, dull, cool, blank) |
| measured(adjective, calm, quiet, easy, mild) |
| meek |
| methodical(adjective, calm, smooth, steady, temperate) |
| murmuring(adjective, calm, quiet, easy, mild) |
| nondiscriminatory(adjective, calm, detached, sober, unfeeling) |
| nonpartisan(adjective, calm, detached, sober, unfeeling) |