309 entries under adjective topic. ×

4
insecure(uncertain, nervous, unstable, doubtful)
4
moody
4
shifting(unstable, irregular, unsettled, unpredictable)
4
unaccountable(careless, immoral, thoughtless, reckless)
4
undecided(uncertain, nervous, doubtful, insecure)
4
uneven
4
unfaithful(false, dishonest, deceitful, unpredictable)
4
unfixed(unstable, unsettled, vague, unpredictable)
4
untrue(false, dishonest, deceitful, unpredictable)
4
whimsical(excited, unstable, unsettled, unreliable)
4
wishy-washy(uncertain, nervous, unstable, hesitant)
3
derelict(careless, negligent)
3
devious(false, dishonest, deceitful, unreliable)
3
dishonest(false, deceitful, unreliable, treacherous)
3
fast and loose(expression, idiom, unreliable, insecure)
3
flimsy(uncertain, feeble, shaky, hesitant)
3
flitting
3
giddy(careless, excited, immoral, thoughtless)
3
loose(informal, careless, foolish, immoral)
3
tentative
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APASmart Define. (2016). undependable thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/undependable/thesaurus/synonyms
ChicagoSmart Define. 2016. "undependable thesaurus" https://smartdefine.org/undependable/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, undependable thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/undependable/thesaurus/synonyms>.
MLASmart Define. "undependable thesaurus" 4 March 2016. Web. 25 September 2026. <https://smartdefine.org/undependable/thesaurus/synonyms>