| brute |
| choke off(verb, expression, phrasal verb, calm, dull) |
| clam(verb, calm, dull, quiet, suppress) |
| clam up(verb, expression, phrasal verb, calm, dull) |
| clammed up(verb, expression, adjective, phrasal verb, close) |
| close up(verb, expression, phrasal verb, calm, dull) |
| cockeyed(impractical, half-baked, doomed) |
| cool it(verb, expression, phrasal verb, calm, dull) |
| crass |
| credulous(adjective, silly, stupid, green, fat) |
| curt(aloof, reserved, reticent, dour, uncommunicative) |
| cut off(verb, expression, calm, dull, quiet) |
| cut short(verb, expression, calm, dull, quiet) |
| dampen(verb, calm, dull, quiet, suppress) |
| dazed(dull, shaky, faint, confused, unintelligent) |
| deaden(verb, calm, dull, quiet, suppress) |
| decrease the volume(verb, expression, idiom, calm, dull) |
| dimwit |
| dippy |
| dry up(verb, expression, phrasal verb, calm, dull) |