as in unpredictability
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Recent Examples of Synonyms for mercurialness
Noun
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What hooked him was the unpredictability—and the responsibility.
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All of it only added to the unpredictability of the character.
Noun
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Her capriciousness leads her into an affair with a frustrated professor, Mark (Michael Angarano), who compliments her writing and composes pretentious, backhandedly insulting poems about their not-quite-love.
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Whether out of arrogance, capriciousness, or collective amnesia, this recent history was ignored.
Noun
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Yakkity’s impulsiveness and wisecracking jokes provide the laughs, while Keo’s rivalry with his father (and his crush on Lemony) ground the show with genuine emotional dynamics.
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That impulsiveness was on display last year when the president pushed the Texas state legislature to gerrymander its electoral maps before the midterms in the hope of maintaining Republican control of Congress.
Noun
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Lynn told me that Colson shared his father’s moodiness, if not his stifling conservatism.
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There’s a fine line between creating moodiness and making a space feel suffocating.
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“Mercurialness.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/mercurialness. Accessed 30 Jun. 2026.
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