| unexpressive(aloof, reserved, reticent, uncommunicative) |
| unforthcoming(quiet, restrained, aloof, reserved, reticent) |
| unheard(still, hushed, soundless) |
| unruffled(adjective, calm, quiet, smooth, tranquil) |
| unsociable(quiet, still, shy, reserved, reticent) |
| unstirring(adjective, calm, quiet, smooth, tranquil) |
| untroubled(adjective, calm, quiet, smooth, tranquil) |
| unuttered(adjective, close, quiet, soft, low) |
| voiceless(quiet, still, shy, silent, dumb) |
| whist(adjective, close, quiet, smooth, soft) |
| withdrawn(aloof, reserved, mysterious, private, reticent) |
| wordless(adjective, close, quiet, restrained, still) |
| QT(unknowing, hermetical, unbriefed) |
| aghast(silent, dazed, dumb, astonished, thunderstruck) |
| amazed(silent, dazed, dumb, astonished, thunderstruck) |
| aphonic(silent, dazed, dumb, astonished, thunderstruck) |
| apprenticed(unknowing, hermetical, unbriefed) |
| astonished(thunderstruck, flabbergasted) |
| astounded(silent, dazed, dumb, astonished, thunderstruck) |
| at a halt(expression, adjective, idiom, tranquil, silent) |