5
silent
4
closemouthed(adjective, open, reserved, silent)
4
introvert(adjective, person, character, behavior, manner)
4
quiet
3
mute
3
taciturn
2
laconic
2
proud
2
reserved
2
reticent
2
uncommunicative
1
aloof
1
bookish
1
cool(adjective, quiet)
1
formal
1
introverted
1
janitorial
1
literary
1
mum
1
speechless
10 years ago|1k views|share |citing 
APASmart Define. (2016). chatty thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/chatty/thesaurus/antonyms
ChicagoSmart Define. 2016. "chatty thesaurus" https://smartdefine.org/chatty/thesaurus/antonyms (accessed September 22, 2026).
HarvardSmart Define 2016, chatty thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/chatty/thesaurus/antonyms>.
MLASmart Define. "chatty thesaurus" 23 March 2016. Web. 22 September 2026. <https://smartdefine.org/chatty/thesaurus/antonyms>