| bashful(quiet, soft, restrained, still, silent) |
| buttoned up(expression, adjective, close, quiet, soft) |
| checked(quiet, soft, still, silent, hushed) |
| clam up(expression, close, quiet, gag, quieten) |
| clammed up(verb, expression, adjective, close, quiet) |
| clamming up(expression, close, quiet, reticent, gag) |
| close(quiet, soft, restrained, still, reticent) |
| closed up(verb, expression, adjective, close, quiet) |
| closemouthed(adjective, quiet, soft, still, reserved) |
| curbed(quiet, soft, still, silent, hushed) |
| dried up(expression, close, quiet, restrained, gag) |
| dumb(quiet, soft, still, silent, quieten) |
| dummy up(expression, close, quiet, gag, quieten) |
| faint(quiet, soft, still, silent, hushed) |
| hush(verb, adjective, close, quiet, soft) |
| hushed(adjective, close, quiet, soft, restrained) |
| iced(verb, adjective, close, quiet, soft) |
| inarticulate(quiet, soft, still, silent, hushed) |
| incoherent(quiet, soft, still, silent, hushed) |
| inconversable(adjective, close, quiet, soft, restrained) |