| reserved(adjective, close, quiet, cool, soft) |
| silent(adjective, calm, close, quiet, soft) |
| reticent(adjective, close, quiet, cool, soft) |
| close-mouthed(adjective, close, quiet, soft) |
| uncommunicative(adjective, close, quiet, soft) |
| mute(adjective, close, quiet, soft) |
| tight-lipped(adjective, close, quiet, soft) |
| speechless(adjective, calm, close, quiet, soft) |
| quiet(adjective, close, soft, restrained) |
| close(adjective, quiet, soft, restraint) |
| dumb(adjective, calm, close, quiet, soft) |
| secretive(adjective, close, quiet, soft) |
| dour(adjective, gloomy, depressed, reserved) |
| saturnine(adjective, gloomy, melancholy, miserable) |
| glum(adjective, gloomy, miserable, depressed) |
| brusque(gloomy, miserable, depressed, ugly) |
| buttoned up(verb, expression, adjective, phrasal verb, close) |
| churlish(gloomy, miserable, depressed, ugly) |
| clammed up(expression, adjective, close, quiet, soft) |
| could hear a pin drop(expression, adjective, idiom, close, quiet) |