| aloof(adjective, calm, indifferent, restrained, casual) |
| civilized(good, well-mannered, well-behaved) |
| cold-blooded(adjective, excitability, unexcitable) |
| decent(adjective, good, well-mannered, well-behaved) |
| enduring(adjective, firm, solid, stable, fixed) |
| even-tempered(adjective, unexcitable) |
| frigid(adjective, unexcitable) |
| humorless |
| meek(adjective, unexcitable) |
| mild(adjective, unexcitable) |
| mundane |
| neutral(adjective, unexcitable) |
| nonchalant(adjective, calm, relaxed, tranquil, easygoing) |
| pacific(adjective, calm, quiet, reasonable, sensible) |
| philosophic |
| ponderous(dull, quiet, big, heavy, substantial) |
| practical(adjective, calm, sensible, dark, restrained) |
| rational(adjective, calm, quiet, reasonable, sensible) |
| realistic(adjective, calm, sensible, dark, restrained) |
| reasonable(adjective, calm, quiet, sensible, dark) |