28 entries under tight-lipped topic. ×

11
reticent(adjective, close, quiet, restrained, still)
10
close(adjective, quiet, soft, restrained, still)
10
silent(adjective, close, quiet, soft, low)
9
secretive(adjective, quiet, still, shy, reserved)
9
taciturn(adjective, close, quiet, restrained, still)
8
quiet(adjective, soft, low, still, shy)
7
uncommunicative(adjective, close, quiet, soft, low)
4
close-lipped(adjective, quiet, reserved, secret, private)
4
mum(adjective, close, quiet, soft, low)
4
reserved(adjective, close, quiet, restrained, still)
3
dumb(quiet, soft, still, reticent, silent)
3
secret(adjective, quiet, reserved, private, reticent)
2
hush-hush(adjective, quiet, reserved, secret, private)
2
tongue-tied(quiet, still, shy, reticent, silent)
2
wordless(quiet, soft, low, still, silent)
1
bashful(quiet, soft, still, shy, silent)
1
buttoning up(expression, adjective, quiet, reserved, secret)
1
clamming up(expression, adjective, quiet, reserved, secret)
1
hidden(adjective, quiet, reserved, secret, private)
1
retired(adjective, quiet, reserved, secret, private)
<12>
11 years ago|1.7k views|share |citing 
APASmart Define. (2015). closemouthed thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/closemouthed/thesaurus/synonyms
ChicagoSmart Define. 2015. "closemouthed thesaurus" https://smartdefine.org/closemouthed/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, closemouthed thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/closemouthed/thesaurus/synonyms>.
MLASmart Define. "closemouthed thesaurus" 14 April 2015. Web. 30 September 2026. <https://smartdefine.org/closemouthed/thesaurus/synonyms>