0
self-contained
0
severe(adjective, stern, uncompromising)
0
shadowy
0
shocked(silent, dazed, dumb, astonished, thunderstruck)
0
standoffish(reserved, reticent, taciturn)
0
subdued(quiet, soft, low)
0
tacit
0
tasteful(quiet, soft, low)
0
thunderstruck(silent, dazed, dumb, astonished, flabbergasted)
0
tightlipped(adjective, taciturn)
0
timid
0
unapproachable(reserved, reticent, taciturn)
0
uncommunicable(adjective, taciturn)
0
under cover(expression, taciturn, uncommunicative)
0
underground
0
unflappable(astonished, thunderstruck, flabbergasted)
0
unobtrusive(adjective, close, quiet, soft, low)
0
unrevealing
0
uptight(quiet, restrained, discreet)
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APASmart Define. (2015). tight-lipped thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/tight-lipped/thesaurus/synonyms
ChicagoSmart Define. 2015. "tight-lipped thesaurus" https://smartdefine.org/tight-lipped/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, tight-lipped thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/tight-lipped/thesaurus/synonyms>.
MLASmart Define. "tight-lipped thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/tight-lipped/thesaurus/synonyms>