101 entries under fickle topic. ×

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bigamous(untrustworthy, unprincipled)
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dirty dealing(expression, dishonest, deceitful, untrustworthy)
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double dealing(expression, false, deceitful, lying)
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extracurricular(untrustworthy, unprincipled, dirty-dealing)
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hallucinatory(adjective, unpredictable, variable, undependable)
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implausible(adjective, unpredictable, variable, undependable)
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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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not trustworthy(expression, adjective, unpredictable, variable)
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polygamous(untrustworthy, unprincipled)
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pretended(adjective, false, dishonest, unpredictable, unreliable)
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pseudo(adjective, fake, deceitful, unpredictable)
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quicksilver(untrustworthy, unprincipled, dirty-dealing)
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stop-at-nothing(untrustworthy, unprincipled, dirty-dealing)
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unconvincing(adjective, unpredictable, worthless, variable)
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under cover(expression, dishonest, deceitful, untrustworthy)
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undutiful(untrustworthy, unprincipled, dirty-dealing)
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vacillating(adjective, unstable, shaky, unpredictable)
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yo-yo(untrustworthy, unprincipled, dirty-dealing)
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APASmart Define. (2016). treacherous thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/treacherous/thesaurus/synonyms
ChicagoSmart Define. 2016. "treacherous thesaurus" https://smartdefine.org/treacherous/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2016, treacherous thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/treacherous/thesaurus/synonyms>.
MLASmart Define. "treacherous thesaurus" 4 March 2016. Web. 30 September 2026. <https://smartdefine.org/treacherous/thesaurus/synonyms>