| at rest(expression, adjective, idiom, calm, quiet) |
| bashful(quiet, still, shy, silent, hushed) |
| buttoned up(expression, adjective, close, quiet, smooth) |
| cavernous |
| checked(still, hushed) |
| clammed up(expression, adjective, close, quiet, smooth) |
| close(adjective, quiet, soft, low, restrained) |
| close-mouthed(adjective, close, quiet, smooth, soft) |
| closed(adjective, calm, quiet, smooth, tranquil) |
| closed up(expression, still, hushed) |
| closemouthed(quiet, soft, low, still, shy) |
| could hear a pin drop(expression, adjective, idiom, close, quiet) |
| curbed(still, hushed) |
| dead |
| deathlike(adjective, calm, quiet, smooth, tranquil) |
| deathly(adjective, calm, quiet, smooth, tranquil) |
| deathly quiet(expression, adjective, calm, quiet, smooth) |
| deathly still(expression, adjective, calm, quiet, smooth) |
| deep as hell(expression, idiom) |
| dummied up(expression, still, hushed) |