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