| uncommunicative(adjective, person, quiet, avoid, restraint) |
| reticent(adjective, quiet, restraint, taciturn, sounds) |
| reserved(adjective, quiet, restraint, taciturn, sounds) |
| taciturn(adjective, quiet, restraint, sounds, tightlipped) |
| close(adjective, restraint, taciturn, sounds) |
| close-mouthed(adjective, quiet, restraint, taciturn, sounds) |
| self-contained(adjective, person, avoid, asocial, dissocial) |
| silent(adjective, quiet, restraint, taciturn, sounds) |
| tightlipped(adjective, quiet, restraint, taciturn, sounds) |
| aloof(adjective, taciturn) |
| antisocial(adjective, person, avoid, taciturn, asocial) |
| inarticulate |
| incommunicable(adjective, quiet, restraint, taciturn, sounds) |
| secretive(adjective, quiet, tightlipped) |
| uncommunicable(adjective, quiet, restraint, taciturn, sounds) |
| unsocial(adjective, person, avoid, asocial, dissocial) |
| asocial(adjective, person, avoid, dissocial) |
| avoidant(adjective, person, avoid, asocial, dissocial) |
| avoiding contact(adjective, person, avoid, asocial, dissocial) |
| closemouthed |