107 entries under unpredictable topic. ×

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fleeting(impulsive, explosive)
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flip(lively, changeable)
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flippant(impulsive, explosive)
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frivolous(impulsive, changeable, indecisive, inconsistent)
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fugacious(impulsive, explosive)
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fugitive(impulsive, explosive)
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gaseous(impulsive, explosive)
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gay(lively, impulsive, changeable, explosive)
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impermanent(impulsive, explosive)
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imponderable(impulsive, explosive)
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irrepressible(lively, changeable)
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light(impulsive, explosive)
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lighthearted(lively, changeable)
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lively(impulsive, changeable, explosive)
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mad(lively, changeable)
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momentary(impulsive, explosive)
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playful(impulsive, explosive)
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resilient(lively, impulsive, changeable, explosive)
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short-fuse(lively, changeable)
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short-lived(impulsive, explosive)
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APASmart Define. (2016). temperamental thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/temperamental/thesaurus/synonyms
ChicagoSmart Define. 2016. "temperamental thesaurus" https://smartdefine.org/temperamental/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, temperamental thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/temperamental/thesaurus/synonyms>.
MLASmart Define. "temperamental thesaurus" 28 March 2016. Web. 25 September 2026. <https://smartdefine.org/temperamental/thesaurus/synonyms>