8
mother
8
still(adjective, quiet, soft, low, silent)
7
hushed(adjective, quiet, soft, low, still)
7
inarticulate(adjective, quiet, soft, awkward, still)
7
soundless(adjective, quiet, soft, low, still)
7
tongue-tied(adjective, quiet, awkward, reticent, silent)
6
hush(quiet, soft, still, silent, hushed)
6
momma(noun, mother, ma, mom, mammy)
5
curt(adjective, aloof, reserved, reticent, taciturn)
5
inaudible(adjective, quiet, soft, low, still)
5
mater(noun, mother, ma, mom)
4
close(adjective, quiet, soft, restrained, still)
4
close-lipped(adjective, quiet, silent, taciturn)
4
close-mouthed(adjective, quiet, restrained, aloof, reserved)
4
closemouthed(adjective, close, quiet, soft, low)
4
florists' chrysanthemum(noun, expression, idiom)
4
mam(noun, mother, ma, mom, mammy)
4
silence(noun, taciturnity)
3
breathless
3
incommunicative(adjective, taciturn)
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APASmart Define. (2015). mum thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/mum/thesaurus/synonyms
ChicagoSmart Define. 2015. "mum thesaurus" https://smartdefine.org/mum/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, mum thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/mum/thesaurus/synonyms>.
MLASmart Define. "mum thesaurus" 13 April 2015. Web. 22 September 2026. <https://smartdefine.org/mum/thesaurus/synonyms>