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4
closemouthed(adjective, reserved, silent)
0
buttoned up
0
clammed up
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have tight chops(expression, idiom)
10 years ago|1k views|share |citing 
APASmart Define. (2016). chatty thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/chatty/thesaurus/antonyms
ChicagoSmart Define. 2016. "chatty thesaurus" https://smartdefine.org/chatty/thesaurus/antonyms (accessed September 23, 2026).
HarvardSmart Define 2016, chatty thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/chatty/thesaurus/antonyms>.
MLASmart Define. "chatty thesaurus" 23 March 2016. Web. 23 September 2026. <https://smartdefine.org/chatty/thesaurus/antonyms>