| callous(adjective, calm, hard, cool, cold) |
| composed(adjective, calm, quiet, cool, moderate) |
| serene(adjective, calm, quiet, cool, moderate) |
| cold(adjective, calm, hard, cool, tough) |
| detached(adjective, calm, quiet, cool, moderate) |
| unfeeling(adjective, calm, hard, cool, tough) |
| uninterested(adjective, dull, weak, easy, slow) |
| frigid(adjective, calm, cool, temper, cold) |
| placid(adjective, calm, quiet, cool, moderate) |
| poker-faced(adjective, calm, dull, cool, indifferent) |
| unresponsive(adjective, calm, dull, hard, careless) |
| cold-blooded(adjective, calm, hard, cool, tough) |
| impassible(adjective, hard, temper, cold, indifferent) |
| sedate(adjective, calm, quiet, cool, moderate) |
| stoical(adjective, calm, cool, cold, indifferent) |
| tranquil(adjective, calm, quiet, cool, relaxed) |
| disinterested(adjective, calm, quiet, cool, moderate) |
| expressionless(adjective, dull, dead, blank, unfeeling) |
| peaceful(adjective, quiet, cool, still, tranquil) |
| unflappable(adjective, calm, quiet, cool, moderate) |