180 entries under unpredictable topic. ×

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gaseous(impulsive, explosive)
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hallucinatory(adjective, strange, crazy, insane)
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high-strung(unstable, unreliable, fickle, erratic)
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hollow(adjective, fickle, variable, undependable)
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implausible(adjective, strange, crazy, insane)
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imponderable(impulsive, explosive)
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inaccurate(adjective, fickle, variable, undependable)
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indeterminate(loose, unreliable, variable, vast)
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irrepressible(lively, changeable, temperamental)
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lighthearted(lively, changeable, temperamental)
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makeshift(adjective, fickle, variable, undependable)
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meandering(irregular, unreliable)
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meretricious(adjective, fickle, variable, undependable)
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mistaken(adjective, fickle, variable, undependable)
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neurotic(adjective, passionate, unstable, unreliable)
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no-good(loose, unreliable, variable, irresponsible)
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no bargain(expression, loose, unreliable, variable)
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not true(expression, adjective, fickle, variable)
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not trustworthy(expression, adjective, fickle, variable)
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pretended(adjective, fickle, variable, undependable)
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APASmart Define. (2015). capricious thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/capricious/thesaurus/synonyms
ChicagoSmart Define. 2015. "capricious thesaurus" https://smartdefine.org/capricious/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, capricious thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/capricious/thesaurus/synonyms>.
MLASmart Define. "capricious thesaurus" 13 April 2015. Web. 25 September 2026. <https://smartdefine.org/capricious/thesaurus/synonyms>