190 entries under adjective topic. ×

1
unconfident(uncertain, nervous, doubtful, shaky)
1
unconvinced(uncertain, nervous, doubtful, hesitant)
1
unhealthy(delicate, uncertain, sensitive, unstable)
1
unserviceable(unreliable, insecure, treacherous, incalculable)
1
unsubstantiated(questionable, unproven)
1
untrusty(uncertain, nervous, doubtful, hesitant)
1
up for grabs(expression, idiom, uncertain, nervous)
1
varying(changeable, changing, fluctuating)
1
waffling(open, uncertain, doubtful, vague)
1
wavering(open, uncertain, nervous, doubtful)
1
wicked(delicate, uncertain, sensitive, unsound)
1
wimpy(uncertain, nervous, doubtful, shaky)
1
wonky(unreliable, insecure, treacherous, incalculable)
0
Damoclean
0
changeful(changeable, fickle, volatile, slippery)
0
changing(changeable, fickle, volatile, wavering)
0
charged
0
distrustful(uncertain, nervous, doubtful, dubious)
0
doubted
0
flexible(changeable, fickle, volatile, wavering)
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APASmart Define. (2015). iffy thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/iffy/thesaurus/synonyms
ChicagoSmart Define. 2015. "iffy thesaurus" https://smartdefine.org/iffy/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, iffy thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/iffy/thesaurus/synonyms>.
MLASmart Define. "iffy thesaurus" 14 April 2015. Web. 27 September 2026. <https://smartdefine.org/iffy/thesaurus/synonyms>