Synonyms|916Antonyms|226|Broader|11Narrower|4Related|1.6k

170 entries under changeable topic. ×

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buoyant(lively, impulsive, unpredictable, explosive)
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crabbed(unstable, temperamental)
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crestfallen(melancholy, miserable, unstable, temperamental)
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dismal(melancholy, miserable, unstable, temperamental)
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doleful(melancholy, miserable, unstable, temperamental)
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dour(unstable, temperamental)
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downcast(melancholy, miserable, unstable, temperamental)
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fast-talking(lively, unpredictable)
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flip(lively, unpredictable)
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fluky(erratic, random)
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from left field(expression, idiom, erratic, random)
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gloomy(unstable, temperamental)
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glum(unstable, temperamental)
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grumpy(unstable, temperamental)
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hanging by a thread(expression, idiom, erratic, random)
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intermittent(adjective, irregular, variable)
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irrepressible(lively, unpredictable, temperamental)
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lugubrious(melancholy, miserable, unstable, temperamental)
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melancholy(miserable, unstable, temperamental, downcast)
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morose(unstable, temperamental)
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APASmart Define. (2016). fickle thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/fickle/thesaurus/synonyms
ChicagoSmart Define. 2016. "fickle thesaurus" https://smartdefine.org/fickle/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, fickle thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/fickle/thesaurus/synonyms>.
MLASmart Define. "fickle thesaurus" 26 February 2016. Web. 24 September 2026. <https://smartdefine.org/fickle/thesaurus/synonyms>