76 entries under uncertain topic. ×

1
problematic(nervous, doubtful, insecure, unsure)
1
questioning(nervous, doubtful, worried, hesitant)
1
skeptical(nervous, shy, doubtful, hesitant)
1
suspect(doubtful, unsure)
1
touch and go(expression, idiom, nervous, doubtful)
1
troubled(nervous, worried, hesitant, insecure)
1
unclear(nervous, doubtful, insecure, unsure)
1
unconvinced(adjective, indifferent, nervous, doubtful)
1
undecided(nervous, doubtful, hesitant, cautious)
1
undependable(nervous, doubtful, insecure, unsure)
1
unlikely(doubtful, unsure)
1
unpoised(adjective, nervous, worried, hesitant)
1
unreliable(nervous, doubtful, insecure, unsure)
1
untrustworthy(nervous, doubtful, insecure, unsure)
1
untrusty(nervous, doubtful, insecure, unsure)
1
up in the air(expression, idiom, nervous, worried)
1
uptight(nervous, worried, hesitant, insecure)
1
vacillating(nervous, shy, doubtful, hesitant)
0
arguable(doubtful, unsure)
0
chancy(doubtful, unsure)
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APASmart Define. (2016). diffident thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/diffident/thesaurus/synonyms
ChicagoSmart Define. 2016. "diffident thesaurus" https://smartdefine.org/diffident/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, diffident thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/diffident/thesaurus/synonyms>.
MLASmart Define. "diffident thesaurus" 24 March 2016. Web. 22 September 2026. <https://smartdefine.org/diffident/thesaurus/synonyms>