63 entries under quiet topic. ×

11
reticent(adjective, close, restrained, still)
10
close(adjective, soft, restrained, still)
10
silent(adjective, close, soft, low)
9
secretive(adjective, still, shy, reserved)
9
taciturn(adjective, close, restrained, still)
7
tight-lipped(adjective, shy, reserved, secret)
7
uncommunicative(adjective, close, soft, low)
4
close-lipped(adjective, reserved, secret, private)
4
laconic(soft, still, silent, hushed)
4
mum(adjective, close, soft, low)
4
reserved(adjective, close, restrained, still)
3
dumb(soft, still, reticent, silent)
3
secret(adjective, reserved, private, reticent)
2
buttoned up(verb, expression, adjective, phrasal verb)
2
clammed up(verb, expression, adjective, phrasal verb)
2
dummied up(verb, expression, adjective, phrasal verb)
2
hush-hush(adjective, reserved, secret, private)
2
mute(soft, low, still, reticent)
2
tongue-tied(still, shy, reticent, silent)
2
wordless(soft, low, still, silent)
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APASmart Define. (2015). closemouthed thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/closemouthed/thesaurus/synonyms
ChicagoSmart Define. 2015. "closemouthed thesaurus" https://smartdefine.org/closemouthed/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, closemouthed thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/closemouthed/thesaurus/synonyms>.
MLASmart Define. "closemouthed thesaurus" 14 April 2015. Web. 27 September 2026. <https://smartdefine.org/closemouthed/thesaurus/synonyms>