| quiescent(adjective, state, close, quiet, soft) |
| secretive(adjective, close, quiet, soft) |
| unexpressed(adjective, close, quiet, soft) |
| unuttered(adjective, close, quiet, soft) |
| muted(adjective, close, quiet, soft) |
| restrained(adjective, close, quiet, soft) |
| closemouthed(adjective, close, quiet, soft) |
| faint(adjective, quiet, soft, still) |
| unhearable(quiet, soft) |
| soft(adjective, close, quiet, gentle) |
| unclear(adjective, quiet, soft, still) |
| buttoned up(expression, adjective, close, quiet, smooth) |
| clammed up(expression, adjective, close, quiet, smooth) |
| muffled(adjective, close, quiet, soft, gentle) |
| nonvocal(adjective, close, quiet, soft) |
| unspeaking(adjective, close, quiet, soft) |
| whist(adjective, calm, close, quiet, smooth) |
| could hear a pin drop(expression, adjective, idiom, close, quiet) |
| discreet(adjective, quiet, simple, soft, moderate) |
| hushful(adjective, calm, close, quiet, smooth) |