| poker face(expression, adjective, detached, blank, unfeeling) |
| practical(adjective, tough, rational, straightforward, sober) |
| pragmatic(adjective, tough, rational, straightforward, sober) |
| prosaic(adjective, tough, rational, straightforward, sober) |
| prosy(adjective, tough, rational, straightforward, sober) |
| quiet(adjective, detached, impassive, unresponsive, laid-back) |
| repressed |
| reticent(adjective, cool, detached, unfriendly, blank) |
| sedate(adjective, cool, blank, aloof, unemotional) |
| self-contained(adjective, cool, blank, aloof, unemotional) |
| senseless(adjective, bad, cold, aloof, no feelings) |
| serious(adjective, tough, rational, straightforward, sober) |
| sober(adjective, tough, rational, straightforward, unfeeling) |
| standoffish(adjective, cool, indifferent, hostile, unfriendly) |
| stockish(adjective, bad, cold, aloof, no feelings) |
| stony-eyed(adjective, detached, blank, unfeeling, impassive) |
| strictly business(expression, adjective, cool, cold, indifferent) |
| tearless(adjective, bad, cold, aloof, no feelings) |
| toneless(adjective, detached, blank, unfeeling, impassive) |
| unaffectionate |