48 entries under restrained topic. ×

41
reserved(adjective, close, quiet, cool, soft)
40
silent(adjective, calm, close, quiet, soft)
25
reticent(adjective, close, quiet, cool, soft)
23
close-mouthed(adjective, close, quiet, soft, low)
21
uncommunicative(adjective, close, quiet, soft, low)
18
tight-lipped(adjective, close, quiet, soft, low)
17
quiet(adjective, close, soft, low)
16
mum(adjective, close, quiet, still)
14
close(adjective, quiet, soft, low, restraint)
11
secretive(adjective, close, quiet, soft, low)
6
closemouthed(adjective, close, quiet, still)
6
unforthcoming(adjective, close, quiet, reserved)
4
retiring(adjective, close, quiet, gentle, mild)
3
cool(adjective, close, quiet, gentle, mild)
3
shy(adjective, close, quiet, still)
3
standoffish(adjective, close, quiet, gentle, mild)
2
bashful(adjective, quiet, gentle, aloof)
2
buttoned up(verb, expression, adjective, phrasal verb, close)
2
clammed up(expression, adjective, close, quiet, soft)
2
formal(adjective, close, quiet, gentle, mild)
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APASmart Define. (2015). taciturn thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/taciturn/thesaurus/synonyms
ChicagoSmart Define. 2015. "taciturn thesaurus" https://smartdefine.org/taciturn/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, taciturn thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/taciturn/thesaurus/synonyms>.
MLASmart Define. "taciturn thesaurus" 14 April 2015. Web. 27 September 2026. <https://smartdefine.org/taciturn/thesaurus/synonyms>