Synonyms|375Antonyms|106|Broader|0Narrower|0Related|281
1
jeopardous(adjective, delicate, uncertain, sensitive, unsound)
1
knotty(tricky, sticky, challenging)
1
lacking(adjective, uncertain, nervous, doubtful, shaky)
1
loaded(adjective, delicate, uncertain, unstable, doubtful)
1
long shot(expression, adjective, delicate, uncertain, sensitive)
1
mercurial(adjective, unusual, uncertain, unstable, irregular)
1
mistakable
1
mistrustful(adjective, uncertain, nervous, doubtful, shaky)
1
mootable(uncertain, doubtful, dubious, unsure, questionable)
1
nondurable(adjective, unreliable, insecure, treacherous, incalculable)
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not a prayer(expression, adjective, idiom, delicate, uncertain)
1
not definite
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not expected(expression, doubtful, unlikely, implausible)
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not final
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not likely(expression, doubtful, unlikely, implausible)
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not settled
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not sure
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obscure(uncertain, doubtful, shaky, dubious, restricted)
1
of two minds
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off the deep end(expression, adjective, idiom, delicate, uncertain)
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ChicagoSmart Define. 2015. "iffy thesaurus" https://smartdefine.org/iffy/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, iffy thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/iffy/thesaurus/synonyms>.
MLASmart Define. "iffy thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/iffy/thesaurus/synonyms>