190 entries under adjective topic. ×

1
fairweather(unreliable, insecure, treacherous, incalculable)
1
faithless(unreliable, insecure, treacherous, incalculable)
1
fallible(unreliable, insecure, treacherous, incalculable)
1
fast and loose(unreliable, insecure, treacherous, incalculable)
1
fitful(uncertain, unstable, irregular, doubtful)
1
fly by night(unreliable, insecure, treacherous, incalculable)
1
fraught with danger(expression, idiom, delicate, uncertain)
1
going for broke(expression, idiom, delicate, uncertain)
1
hanging by a thread(expression, idiom, delicate, uncertain)
1
hesitant(open, uncertain, doubtful, vague)
1
hopeless(unreliable, insecure, treacherous, incalculable)
1
impugnable(delicate, uncertain, unstable, doubtful)
1
in a quandary(expression, idiom, uncertain, nervous)
1
inconstant(uncertain, irregular, doubtful, vague)
1
irrational
1
irregular(unusual, uncertain, unstable, doubtful)
1
irresponsible(unreliable, insecure, treacherous, incalculable)
1
jeopardous(delicate, uncertain, sensitive, unsound)
1
lacking(uncertain, nervous, doubtful, shaky)
1
loaded(delicate, uncertain, unstable, doubtful)
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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>