| noiseless(adjective, quiet, soft, low, still) | |
| tongueless(silent, muffled, voiceless, aphony) | |
| Chrysanthemum morifolium(noun, expression, idiom) | |
| Dendranthema grandifloruom | |
| aphasic(silent, muffled, voiceless) | |
| aphonic(silent, dazed, dumb, amazed, astonished) | |
| bashful(adjective, quiet, soft, restrained, awkward) | |
| clammed up(expression, adjective, quiet, restrained, reticent) | |
| dumbfounded(awkward, silent, dazed, dumb, amazed) | |
| dumbstruck(awkward, silent, dazed, dumb, amazed) | |
| florist's chrysanthemum | |
| laconic(quiet, soft, still, aloof, reserved) | |
| muted(adjective, quiet, soft, low, reticent) | |
| nonvocal(adjective, quiet, soft, low, still) | |
| old woman | |
| quiescence | |
| succinct(adjective, taciturn) | |
| tacit | |
| unforthcoming(adjective, close, quiet, restrained, aloof) | |
| unsociable(adjective, quiet, still, silent, hushed) |
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| APA | Smart Define. (2015). mum thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/mum/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "mum thesaurus" https://smartdefine.org/mum/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, mum thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/mum/thesaurus/synonyms>. |
| MLA | Smart Define. "mum thesaurus" 13 April 2015. Web. 23 September 2026. <https://smartdefine.org/mum/thesaurus/synonyms> |