| hard-hearted(adjective, detached, impassive, unresponsive, laid-back) |
| heartless(adjective, cool, detached, blank, sober) |
| heartlessly |
| icy(adjective, cool, detached, blank, sober) |
| immovable(adjective, cool, flat, detached, blank) |
| impassible(adjective, cold, aloof, neutral, indefferent) |
| impersonal(adjective, cool, tough, rational, straightforward) |
| inane |
| incommunicative |
| indifferent(adjective, calm, dull, cool, flat) |
| insensitive(adjective, detached, impassive, unresponsive, laid-back) |
| jejune |
| laid-back(adjective, detached, impassive, unresponsive, reticent) |
| laid back(expression, adjective, cool, detached, blank) |
| marble(adjective, detached, impassive, unresponsive, laid-back) |
| naked(adjective, tough, rational, straightforward, sober) |
| no-nonsense(dull, quiet, heavy, rational, straightforward) |
| non-caring(adjective, cold, aloof, neutral, indefferent) |
| nonemotional(adjective, cool, flat, detached, blank) |
| not responsive(expression, adjective, detached, impassive, unresponsive) |