11
unassuming(adjective, person, quiet, feelings, modest)
11
unforthcoming(adjective, person, quiet, cool, cold)
10
close-mouthed(adjective, close, quiet, soft, gentle)
10
decent(adjective, appropriate, pure, modest, moral)
10
haughty(adjective, person, cold, indifferent, detached)
10
inhibited(verb, adjective, calm, close, quiet)
10
mute(adjective, close, quiet, soft, low)
10
self-effacing(adjective, person, quiet, simple, feelings)
9
conserved(verb, adjective, saved, retained, conserved)
9
forbidding(adjective, person, indifferent, feelings, detached)
9
hostile(adjective, person, cold, indifferent, feelings)
9
mum(adjective, close, quiet, restrained, still)
9
self-conscious(adjective, person, quiet, feelings, shy)
9
solitary(adjective, close, quiet, separate, attitude)
9
withheld(verb, adjective, confined, concealed, covered)
8
constrained(verb, adjective, calm, restrained, careful)
8
curt(adjective, aloof, reticent, taciturn, uncommunicative)
8
guarded(verb, adjective, reasonable, sensible, restrained)
8
icy(adjective, person, cool, feelings, detached)
8
indifferent(adjective, calm, person, cool, reasonable)
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APASmart Define. (2016). reserved thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/reserved/thesaurus/synonyms
ChicagoSmart Define. 2016. "reserved thesaurus" https://smartdefine.org/reserved/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, reserved thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/reserved/thesaurus/synonyms>.
MLASmart Define. "reserved thesaurus" 24 March 2016. Web. 22 September 2026. <https://smartdefine.org/reserved/thesaurus/synonyms>