47 entries under unpredictable topic. ×
| uncertain(noun, adjective, clear, open, delicate) | |
| dubious(adjective, clear, open, delicate, certain) | |
| dicey(noun, adjective, delicate, uncertain, sensitive) | |
| unreliable(adjective, delicate, uncertain, nervous, unstable) | |
| capricious(adjective, uncertain, irregular, dubious) | |
| erratic(adjective, uncertain, irregular, doubtful, vague) | |
| unstable(adjective, delicate, uncertain, nervous, irregular) | |
| arbitrary(adjective, irregular, unreliable, changeable) | |
| fluctuant(adjective, uncertain, nervous, irregular, doubtful) | |
| variable(adjective, uncertain, irregular, doubtful, vague) | |
| inconsistent(adjective, irregular, unreliable) | |
| volatile(adjective, unusual, uncertain, unstable, irregular) | |
| changeable(adjective, uncertain, irregular, doubtful, vague) | |
| fitful(adjective, uncertain, unstable, irregular, doubtful) | |
| inconstant(adjective, uncertain, irregular, doubtful, vague) | |
| irregular(adjective, unusual, uncertain, unstable, doubtful) | |
| mercurial(adjective, unusual, uncertain, unstable, irregular) | |
| shifting(adjective, unusual, uncertain, unstable, irregular) | |
| spasmodic(adjective, unusual, uncertain, unstable, irregular) | |
| aberrant(irregular, unreliable) |
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| APA | Smart Define. (2015). iffy thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/iffy/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "iffy thesaurus" https://smartdefine.org/iffy/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, iffy thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/iffy/thesaurus/synonyms>. |
| MLA | Smart Define. "iffy thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/iffy/thesaurus/synonyms> |