82 entries under silent topic. ×

4
close(adjective, quiet, soft, restrained, still)
4
close-lipped(adjective, quiet, taciturn)
4
closemouthed(adjective, close, quiet, soft, low)
3
noiseless(adjective, quiet, soft, low, still)
3
tongueless(muffled, voiceless, aphony)
2
aphasic(muffled, voiceless)
2
aphonic(dazed, dumb, amazed, astonished)
2
bashful(adjective, quiet, soft, restrained, awkward)
2
clammed up(expression, adjective, quiet, restrained, reticent)
2
dumbfounded(awkward, dazed, dumb, amazed)
2
dumbstruck(awkward, dazed, dumb, amazed)
2
muted(adjective, quiet, soft, low, reticent)
2
nonvocal(adjective, quiet, soft, low, still)
2
unforthcoming(adjective, close, quiet, restrained, aloof)
2
unsociable(adjective, quiet, still, hushed)
2
unsounded(adjective, muffled, voiceless)
1
buttoned up(expression, adjective, quiet, soft, reticent)
1
checked(quiet, soft, still, hushed)
1
closed up(expression, adjective, quiet, soft, still)
1
curbed(quiet, soft, still, hushed)
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APASmart Define. (2015). mum thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/mum/thesaurus/synonyms
ChicagoSmart Define. 2015. "mum thesaurus" https://smartdefine.org/mum/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, mum thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/mum/thesaurus/synonyms>.
MLASmart Define. "mum thesaurus" 13 April 2015. Web. 27 September 2026. <https://smartdefine.org/mum/thesaurus/synonyms>