200 entries under adjective topic. ×

5
blushing(soft, shy, meek, modesty)
5
cautious(quiet, gentle, uncertain, aloof)
5
fainthearted(weak, nervous, shy, worried)
5
quiet(soft, shy, meek, frugal)
4
afraid(weak, uncertain, fear, shy)
4
distrustful(nervous, hesitant, insecure, unsure)
4
dubious(uncertain, nervous, doubtful, hesitant)
4
faint-hearted(weak, fear, nervous, shy)
4
loath(uncertain, shy, doubtful, hesitant)
4
pusillanimous(weak, nervous, shy, worried)
4
unassured(quiet, uncertain, shy, doubtful)
4
undemonstrative(quiet, gentle, modest, aloof)
4
unostentatious(person, soft, feelings, shy)
4
unpresuming(person, soft, feelings, shy)
4
wavering(uncertain, nervous, shy, doubtful)
4
worried(uncertain, nervous, shy, hesitant)
4
yellow(weak, nervous, shy, worried)
3
aloof(close, quiet, gentle, mild)
3
chary(shy, hesitant, timid, unenthusiastic)
3
chicken(shy, worried, afraid, apprehensive)
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APASmart Define. (2016). diffident thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/diffident/thesaurus/synonyms
ChicagoSmart Define. 2016. "diffident thesaurus" https://smartdefine.org/diffident/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, diffident thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/diffident/thesaurus/synonyms>.
MLASmart Define. "diffident thesaurus" 24 March 2016. Web. 21 September 2026. <https://smartdefine.org/diffident/thesaurus/synonyms>