| stoic(adjective, calm, impassive, unemotional, laid-back) |
| apathetic(adjective, calm, dull, flat, detached) |
| blah(adjective, calm, dull, flat, detached) |
| callous(adjective, detached, impassive, unresponsive, laid-back) |
| chill(adjective, detached, impassive, unresponsive, laid-back) |
| cold(adjective, calm, dull, flat, detached) |
| coldhearted(adjective, detached, impassive, unresponsive, insensitive) |
| cool(adjective, calm, dull, flat, detached) |
| deadpan(adjective, calm, dull, flat, detached) |
| dispassionate(adjective, calm, dull, flat, detached) |
| emotionless(adjective, calm, dull, flat, detached) |
| flat(adjective, calm, dull, detached, impassive) |
| frigid(adjective, calm, dull, flat, detached) |
| glacial(adjective, detached, impassive, unresponsive, laid-back) |
| going with the flow(expression, adjective, idiom, detached, impassive) |
| hard-boiled(adjective, detached, impassive, unresponsive, laid-back) |
| hard-hearted(adjective, detached, impassive, unresponsive, laid-back) |
| heartless(adjective, detached, impassive, unresponsive, laid-back) |
| impassive(adjective, calm, detached, unemotional, unresponsive) |
| indifferent(adjective, calm, dull, flat, detached) |