| insouciant(adjective, state, feeling, attitude, careless) |
| lax(adjective, state, feeling, attitude, careless) |
| lazy(adjective, state, feeling, attitude, careless) |
| leisurely(adjective, state, feeling, attitude, careless) |
| level-headed(adjective, attitude, cold, unemotional, calmness) |
| lukewarm(adjective, state, feeling, attitude, careless) |
| non-caring(adjective, cold, dead, aloof, apathy) |
| offhand(adjective, state, feeling, attitude, careless) |
| placid(adjective, attitude, cold, unemotional, calmness) |
| relaxed(adjective, state, feeling, attitude, careless) |
| self-controlled(adjective, attitude, cold, unemotional, calmness) |
| self-possessed(adjective, attitude, cold, unemotional, calmness) |
| serene(adjective, attitude, cold, unemotional, calmness) |
| sober(adjective, attitude, cold, unemotional, calmness) |
| tranquil(adjective, attitude, cold, unemotional, calmness) |
| unenthusiastic(adjective, state, feeling, attitude, careless) |
| unruffled(adjective, attitude, cold, unemotional, calmness) |