57 entries under expression topic. ×

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not fixed(uneven, unbalanced, unhinged)
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not often(adverb, variable, variably, alternately)
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not potent
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not resolute(adjective, hesitant, wavering, indecisive)
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not sonorous
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not stiff
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not true(adjective, unpredictable, hollow, fickle)
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not trustworthy(adjective, unpredictable, hollow, fickle)
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now then(adverb, variably, alternately)
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on occasion(adverb, intermittently, variably, alternately)
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on thin ice(idiom, nervous, doubtful, vague)
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open to attack(unstable, vulnerable, dangerous, precarious)
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shilly shally
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up and down(idiom, adverb, variably, alternately)
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very seldom(adverb, variable, variably, alternately)
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when the mood strikes(idiom, adverb, variable, variably)
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without ballast(idiom, irresolution)
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APASmart Define. (2016). vacillating thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/vacillating/thesaurus/synonyms
ChicagoSmart Define. 2016. "vacillating thesaurus" https://smartdefine.org/vacillating/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, vacillating thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/vacillating/thesaurus/synonyms>.
MLASmart Define. "vacillating thesaurus" 4 March 2016. Web. 21 September 2026. <https://smartdefine.org/vacillating/thesaurus/synonyms>