190 entries under adjective topic. ×

3
delicate(uncertain, sensitive, unstable, doubtful)
3
fishy(uncertain, doubtful, shaky, dubious)
3
fluctuant(uncertain, nervous, irregular, doubtful)
3
fly-by-night(uncertain, nervous, doubtful, dubious)
3
improbable(uncertain, doubtful, shaky, likely)
3
in doubt(expression, idiom, clear, open)
3
in question(idiom, clear, certain)
3
inconclusive(clear, certain, uncertain, doubtful)
3
rocky(delicate, uncertain, sensitive, unstable)
3
shady(uncertain, doubtful, shaky, dubious)
3
slippery(delicate, uncertain, unstable, doubtful)
3
unassured(uncertain, nervous, doubtful, dubious)
3
unsound(delicate, uncertain, sensitive, risky)
3
variable(uncertain, irregular, doubtful, vague)
3
weak(uncertain, nervous, doubtful, insecure)
2
at issue(idiom, clear, certain)
2
explosive
2
flimsy(doubtful, unlikely, implausible, unsubstantiated)
2
inconsistent(irregular, unpredictable, unreliable)
2
on thin ice(expression, idiom, delicate, uncertain)
11 years ago|5.7k views|share |citing 
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>