23
uncertain(noun, adjective, clear, open, delicate)
21
chancy(noun, adjective, clear, delicate, certain)
18
doubtful(noun, adjective, clear, open, delicate)
15
dubious(adjective, clear, open, delicate, certain)
15
questionable(adjective, clear, certain, unreliable, insecure)
14
precarious(adjective, delicate, uncertain, sensitive, unstable)
13
unsure(noun, adjective, clear, open, delicate)
12
dicey(noun, adjective, delicate, uncertain, sensitive)
12
problematic(adjective, clear, open, delicate, certain)
12
risky(noun, adjective, delicate, uncertain, unstable)
10
shaky(adjective, delicate, uncertain, nervous, unstable)
10
unpredictable(noun, adjective, uncertain, irregular, doubtful)
9
hazardous(adjective, delicate, uncertain, sensitive, unstable)
8
dangerous(noun, adjective, delicate, uncertain, sensitive)
8
debatable(adjective, open, uncertain, doubtful, dubious)
8
dubitable(adjective, clear, certain, uncertain, doubtful)
8
fluky(adjective, changeable, risky, erratic, random)
8
unreliable(adjective, delicate, uncertain, nervous, unstable)
7
incalculable(adjective, uncertain, unreliable, insecure, treacherous)
7
insecure(adjective, delicate, uncertain, nervous, sensitive)
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APASmart Define. (2015). iffy thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/iffy/thesaurus/synonyms
ChicagoSmart Define. 2015. "iffy thesaurus" https://smartdefine.org/iffy/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, iffy thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/iffy/thesaurus/synonyms>.
MLASmart Define. "iffy thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/iffy/thesaurus/synonyms>