| quiet(adjective, calm, dull, close, soft) |
| reserved(adjective, calm, close, quiet, simple) |
| discreet(adjective, calm, simple, soft, reasonable) |
| tasteful(adjective, calm, close, quiet, soft) |
| reticent(adjective, calm, close, quiet, soft) |
| inobtrusive(adjective, calm, close, quiet, soft) |
| quiescent(adjective, close, quiet, soft) |
| hushed(adjective, close, quiet, soft, gentle) |
| muted(adjective, calm, close, quiet, soft) |
| secretive(adjective, close, quiet, soft) |
| silent(adjective, close, quiet, simple, soft) |
| soft(adjective, calm, close, quiet, reasonable) |
| buttoned up(expression, adjective, close, quiet, soft) |
| clammed up(expression, adjective, close, quiet, soft) |
| close(adjective, quiet, soft, silent) |
| close-mouthed(adjective, close, quiet, soft) |
| could hear a pin drop(expression, adjective, idiom, close, quiet) |
| dumb(adjective, close, quiet, soft) |
| hushful(adjective, close, quiet, soft) |
| inaudible(adjective, close, quiet, soft) |