Synonyms|81Antonyms|9|Broader|0Narrower|0Related|20
5
shut up
4
close up
3
belt up
3
clam up
3
dummy up
2
button up
2
conceal(hide, stash, stow)
2
keep quiet(verb, expression, hide, stash, stow)
2
tongue
2
veil(hide, stash, stow)
2
withhold(hide, stash, stow)
1
be quiet
1
bosom
1
classify
1
hold out on(expression, idiom)
1
hush
1
keep back
1
keep from
1
play dumb
1
secrete
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APASmart Define. (2015). keep mum thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/keep_mum/thesaurus/synonyms
ChicagoSmart Define. 2015. "keep mum thesaurus" https://smartdefine.org/keep_mum/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, keep mum thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/keep_mum/thesaurus/synonyms>.
MLASmart Define. "keep mum thesaurus" 13 April 2015. Web. 20 September 2026. <https://smartdefine.org/keep_mum/thesaurus/synonyms>