| half-baked |
| high-spirited(adjective, feature, state, trait) |
| imperturbable(adjective, calm, cool, relaxed, casual) |
| insensitive(adjective, indifferent, unsympathetic, inattentive, uninterested) |
| lazy(mild, relaxed, tolerant, laid-back, permissive) |
| lifeless(adjective, lethargic, languid, sleepy, indolent) |
| light(adjective, feature, state, calm, cool) |
| lively(adjective, feature, state, trait) |
| merry(adjective, feature, state, trait) |
| oblivious(adjective, indifferent, unsympathetic, inattentive, uninterested) |
| remote(adjective, cool, informal, relaxed, easygoing) |
| reserved(adjective, indifferent, unsympathetic, inattentive, uninterested) |
| resilient(adjective, feature, state, trait) |
| slack(lifeless, lethargic, languid, sleepy, indolent) |
| slow(adjective, lethargic, languid, indolent) |
| stony(adjective, indifferent, unsympathetic, inattentive, uninterested) |
| stupefied |
| tepid |
| tolerant(adjective, feature, state, mild, relaxed) |
| unfeeling(adjective, calm, cool, relaxed, detached) |