102 entries under fickle topic. ×

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lubricious(changeable, untrustworthy, unprincipled, indecisive)
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makeshift(adjective, unpredictable, variable, undependable)
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mercentary(untrustworthy, unprincipled, dirty-dealing)
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not true(expression, adjective, wrong, false, unpredictable)
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on the QT(expression, idiom, untrustworthy, unprincipled)
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on the quiet(expression, idiom, untrustworthy, unprincipled)
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perjurious(untrustworthy, unprincipled, dirty-dealing)
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polygamous(untrustworthy, unprincipled)
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pseudo(adjective, unpredictable, variable, undependable)
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questionable(adjective, false, dishonest, deceitful, unpredictable)
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snake in grass(expression, idiom, untrustworthy, unprincipled)
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stop-at-nothing(untrustworthy, unprincipled, dirty-dealing)
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stop at nothing(expression, idiom, untrustworthy, unprincipled)
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sub-rosa(untrustworthy, unprincipled, dirty-dealing)
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unassured(adjective, false, dishonest, deceitful, unreliable)
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unconvincing(adjective, unpredictable, variable, undependable)
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under cover(expression, untrustworthy, unprincipled, dirty-dealing)
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vacillating(adjective, unpredictable, changeable, variable)
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variable(adjective, unpredictable, changeable, undependable)
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weak(adjective, unpredictable, variable, undependable)
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APASmart Define. (2015). unfaithful thesaurus. Retrieved October 2, 2026, from https://smartdefine.org/unfaithful/thesaurus/synonyms
ChicagoSmart Define. 2015. "unfaithful thesaurus" https://smartdefine.org/unfaithful/thesaurus/synonyms (accessed October 2, 2026).
HarvardSmart Define 2015, unfaithful thesaurus, Smart Define, viewed 2 October, 2026, <https://smartdefine.org/unfaithful/thesaurus/synonyms>.
MLASmart Define. "unfaithful thesaurus" 14 April 2015. Web. 2 October 2026. <https://smartdefine.org/unfaithful/thesaurus/synonyms>