70 entries under temperamental topic. ×

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lugubrious(melancholy, miserable, unstable, changeable)
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melancholy(miserable, unstable, changeable, downcast)
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morose(unstable, changeable)
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out of sorts(expression, idiom, unstable, changeable)
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pensive(melancholy, miserable, unstable, changeable)
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saturnine(unstable, changeable)
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short-fuse(lively, unpredictable, changeable)
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spirited(lively, unpredictable, changeable)
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sulky(unstable, changeable)
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sullen(unstable, changeable)
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APASmart Define. (2016). erratic thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/erratic/thesaurus/synonyms
ChicagoSmart Define. 2016. "erratic thesaurus" https://smartdefine.org/erratic/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, erratic thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/erratic/thesaurus/synonyms>.
MLASmart Define. "erratic thesaurus" 26 February 2016. Web. 24 September 2026. <https://smartdefine.org/erratic/thesaurus/synonyms>