60 entries under doubtful topic. ×

34
unreliable(adjective, strong, false, passionate, careless)
24
untrustworthy(adjective, false, careless, foolish, uncertain)
21
uncertain(adjective, passionate, nervous, unstable, irregular)
19
unstable(adjective, delicate, passionate, careless, foolish)
14
dubious(adjective, uncertain, nervous, dishonest)
12
unsure(adjective, uncertain, nervous, unstable, dishonest)
12
wavering(adjective, uncertain, nervous, unstable, irregular)
11
fly-by-night(adjective, false, careless, foolish, uncertain)
10
weak(adjective, strong, uncertain, nervous, feeble)
9
irresolute(adjective, uncertain, nervous, unstable, irregular)
9
questionable(adjective, uncertain, dishonest, deceitful)
9
shaky(adjective, uncertain, nervous, unstable, feeble)
9
vacillating(adjective, uncertain, nervous, unstable, irregular)
8
untrusty(adjective, false, uncertain, nervous, dishonest)
7
indecisive(adjective, uncertain, nervous, unstable)
7
unassured(adjective, uncertain, nervous, dishonest)
5
hesitant(adjective, uncertain, nervous, unstable, feeble)
5
trustless(adjective, uncertain, dishonest, deceitful)
4
iffy(adjective, uncertain, nervous, dubious)
4
insecure(adjective, uncertain, nervous, unstable)
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APASmart Define. (2016). undependable thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/undependable/thesaurus/synonyms
ChicagoSmart Define. 2016. "undependable thesaurus" https://smartdefine.org/undependable/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, undependable thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/undependable/thesaurus/synonyms>.
MLASmart Define. "undependable thesaurus" 4 March 2016. Web. 24 September 2026. <https://smartdefine.org/undependable/thesaurus/synonyms>