| proof against |
| putting on airs(expression, adjective, idiom, indifferent, detached) |
| quiet(adjective, calm, restrained, detached, subdued) |
| reactive |
| rebel |
| relentless(adjective, mean, hard, tough, harsh) |
| remorseless(adjective, cruel, brutal, unkind, strict) |
| remote(adjective, cool, indifferent, detached, blank) |
| reticent(adjective, detached, impassive, unresponsive, laid-back) |
| rigid(adjective, mean, hard, harsh, detached) |
| risk taker |
| roll with punches(expression, adjective, idiom, calm, cool) |
| rolling with the punches(expression, adjective, idiom, detached, impassive) |
| savage(adjective, cruel, unfeeling, callous) |
| secluded(adjective, indifferent, detached, distant, remote) |
| sedate(adjective, calm, cool, restrained, steady) |
| select |
| self-satisfied(adjective, calm, cool, steady, tranquil) |
| sensationless(adjective, hard, tough, severe, cruel) |
| senseless(adjective, hard, tough, severe, cruel) |