| together(adjective, calm, quiet, relaxed, casual) |
| uncolored(adjective, good, reasonable, clean, honest) |
| unenthusiastic(adjective, calm, indifferent, restrained, subdued) |
| unimpressionable(adjective, detached, impassive, unresponsive, reticent) |
| unjaundiced |
| unpassionate(adjective, excitability) |
| unsusceptible |
| untroubled(adjective, calm, quiet, cool, soft) |
| aboveboard(adjective, good, reasonable, clean, honest) |
| adamant(adjective, cold, indifferent, unyielding) |
| balanced(adjective, calm, sound, soft, reasonable) |
| blase(calm, cool, relaxed, indifferent, detached) |
| careful(adjective, calm, cool, soft, reasonable) |
| cautious(adjective, calm, soft, reasonable, gentle) |
| chill(adjective, cool, detached, blank, sober) |
| cold-fish(adjective, calm, detached, unfeeling, unemotional) |
| coldhearted(adjective, detached, impassive, unresponsive, reticent) |
| comfortable(calm, peaceful, tranquil) |
| cool cat(expression, adjective, calm, cool, detached) |
| dignified(calm, cool) |