| reticent(adjective, close, quiet, soft, low) |
| reserved(adjective, close, quiet, cool, soft) |
| taciturn(noun, adjective, close, quiet, soft) |
| aloof(adjective, close, quiet, attitude, indifferent) |
| silent(adjective, close, quiet, soft, low) |
| close(adjective, quiet, soft, low, restraint) |
| close-mouthed(adjective, close, quiet, soft, low) |
| distant(adjective, close, quiet, attitude, cold) |
| secretive(adjective, close, quiet, cool, soft) |
| unfriendly(adjective, person, cool, avoid, cold) |
| withdrawn(adjective, close, quiet, cool, attitude) |
| incommunicative(adjective, person, quiet, avoid, restraint) |
| tight-lipped(adjective, close, quiet, soft, low) |
| offish(adjective, person, close, quiet, cool) |
| quiet(adjective, close, soft, low, restrained) |
| unsociable(adjective, person, close, quiet, avoid) |
| mum(adjective, close, quiet, soft, low) |
| antisocial(adjective, company, person, avoid, shy) |
| guarded(adjective, shy, reserved, mysterious, private) |
| mute(adjective, close, quiet, soft, low) |