130 entries under changeable topic. ×

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doleful(melancholy, miserable, unstable, temperamental)
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double-crossing(indecisive, inconsistent)
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dour(unstable, temperamental)
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downcast(melancholy, miserable, unstable, temperamental)
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flexible(adjective, fickle, volatile, changing)
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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, doubtful, vague, hesitant)
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hazy(doubtful, vague, hesitant, unsure)
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indeterminate(doubtful, vague, hesitant, unsure)
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indistinct(doubtful, vague, hesitant, unsure)
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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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on thin ice(expression, doubtful, vague, unpredictable)
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out of sorts(expression, idiom, unstable, temperamental)
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pensive(melancholy, miserable, unstable, temperamental)
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questionable(doubtful, vague, hesitant, unsure)
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quicksilver(indecisive, inconsistent)
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APASmart Define. (2015). fitful thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/fitful/thesaurus/synonyms
ChicagoSmart Define. 2015. "fitful thesaurus" https://smartdefine.org/fitful/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, fitful thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/fitful/thesaurus/synonyms>.
MLASmart Define. "fitful thesaurus" 13 April 2015. Web. 29 September 2026. <https://smartdefine.org/fitful/thesaurus/synonyms>