| thoughtless(adjective, feature, state, dull, trait) |
| buoyant(adjective, feature, state, happy, relaxed) |
| calm(adjective, feature, state, cool, happy) |
| cold(adjective, calm, cool, relaxed, indifferent) |
| half-hearted(adjective, cold, indifferent, dead, apathy) |
| incurious(adjective, calm, cool, relaxed, cold) |
| perfunctory(adjective, cold, indifferent, dead, apathy) |
| insensible(adjective, cold, indifferent, dead, unsympathetic) |
| lightsome(adjective, feature, state, trait) |
| negligent(adjective, feature, state, calm, cool) |
| offhand(adjective, calm, cool, mild, relaxed) |
| permissive(adjective, feature, state, attitude, mild) |
| sunny(adjective, feature, state, keen, happy) |
| unenthusiastic |
| unmoved(adjective, cold, indifferent, dead, unsympathetic) |
| composed(adjective, calm, cool, mild, relaxed) |
| cursory(adjective, cool, informal, relaxed, easygoing) |
| debonair(adjective, feature, state, trait) |
| distant(adjective, indifferent, unsympathetic, inattentive, uninterested) |
| dull(adjective, lethargic, languid, indolent) |