15 entries under tight-lipped topic. ×

18
silent(adjective, calm, quiet, soft, low)
4
reserved(adjective, quiet, still, silent, dazed)
2
closemouthed(quiet, soft, low, still, silent)
2
soundless(quiet, soft, low, still, silent)
1
bashful(quiet, still, silent, hushed, soundless)
1
buttoned up(expression, adjective, close, quiet, restrained)
1
clammed up(expression, adjective, close, quiet, restrained)
1
hushed(adjective, close, quiet, soft, low)
1
muted(quiet, soft, low, still, silent)
1
nonvocal(adjective, close, quiet, soft, low)
1
not talkative(expression, adjective, close, quiet, soft)
1
still(quiet, soft, low, silent, hushed)
1
unsociable(quiet, still, silent, hushed, soundless)
1
unspeaking(adjective, close, quiet, restrained, still)
1
zipped(quiet, still, silent, hushed, soundless)
11 years ago|3.5k views|share |citing 
APASmart Define. (2015). wordless thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/wordless/thesaurus/synonyms
ChicagoSmart Define. 2015. "wordless thesaurus" https://smartdefine.org/wordless/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, wordless thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/wordless/thesaurus/synonyms>.
MLASmart Define. "wordless thesaurus" 14 April 2015. Web. 30 September 2026. <https://smartdefine.org/wordless/thesaurus/synonyms>