| untroubled(adjective, calm, quiet, smooth, tranquil) |
| unuttered(adjective, close, quiet, soft, low) |
| whist(adjective, close, quiet, smooth, soft) |
| at a halt(expression, adjective, idiom, tranquil, silent) |
| at a standstill(expression, adjective, idiom, tranquil, silent) |
| at ease(expression, silenced, whist, disimpassioned) |
| composed(silenced, whist, disimpassioned) |
| cool as cucumber(expression, idiom, silenced, whist, disimpassioned) |
| discreet(adjective, soft, low, silent, noiseless) |
| disimpassioned(silenced, whist) |
| held down(expression, silenced, whist, disimpassioned) |
| immobile(adjective, tranquil, silent, motionless, unmoving) |
| keeping a stiff upper lip(expression, idiom, silenced, whist, disimpassioned) |
| low-keyed(adjective, gentle) |
| mild(adjective, gentle) |
| muzzled(silenced, whist, disimpassioned) |
| not turn a hair(expression, idiom, silenced, whist, disimpassioned) |
| restrained(adjective, quiet, soft, low) |
| silenced(whist, disimpassioned) |
| soft-spoken(adjective, quiet) |