| unrestrained(adjective, plain, tighten) |
| unsociable(adjective, informal, shy, unfriendly, antisocial) |
| unworried(adjective, feature, state, calm, informal) |
| upbeat(adjective, feature, state, trait) |
| vivacious(adjective, feature, state, trait) |
| wishy-washy(adjective, soft, nervous, hesitant, fearful) |
| withdrawn(adjective, calm, quiet, cool, reasonable) |
| world-weary(adjective, cool, refined, practical, mature) |
| abstract(adjective, indifferent, casual, aloof, unemotional) |
| abstracted(careless, indifferent, apathetic, lethargic, languid) |
| acquiescent(adjective, quiet, gentle, indifferent, apathetic) |
| adult(adjective, refined, practical, mature, cultured) |
| agreeable(adjective, quiet, gentle, meek, easygoing) |
| along for the ride(expression, adjective, idiom, detached, impassive) |
| amenable(quiet, gentle, mild, relaxed, submissive) |
| amiable(adjective, calm, quiet, cool, moderate) |
| amicable(adjective, quiet, cool, moderate, gentle) |
| artificial(adjective, cool, refined, practical, mature) |
| artless(simple, easy, real, genuine, unaffected) |
| asleep(adjective, quiet, indifferent, apathetic, lifeless) |