Synonyms|120Antonyms|58|Broader|1Narrower|0Related|85
2
clammed up(verb, expression, adjective, phrasal verb, quiet)
2
dummied up(verb, expression, adjective, phrasal verb, quiet)
2
hush-hush(adjective, quiet, reserved, secret, private)
2
mute(quiet, soft, low, still, reticent)
2
snug
2
tongue-tied(quiet, still, shy, reticent, silent)
2
wordless(quiet, soft, low, still, silent)
1
bashful(quiet, soft, still, shy, silent)
1
brief
1
brusque
1
buttoning up(expression, adjective, quiet, reserved, secret)
1
checked(quiet, soft, still, silent, hushed)
1
clamming up(expression, adjective, quiet, reserved, secret)
1
close-tongued
1
closed up(expression, quiet, soft, still, silent)
1
concise
1
confining
1
crowded
1
curbed(quiet, soft, still, silent, hushed)
1
curt
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ChicagoSmart Define. 2015. "closemouthed thesaurus" https://smartdefine.org/closemouthed/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, closemouthed thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/closemouthed/thesaurus/synonyms>.
MLASmart Define. "closemouthed thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/closemouthed/thesaurus/synonyms>