86 entries under irregular topic. ×

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anomalous(unpredictable, unreliable)
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at odds(expression, adjective, uncertain, conflicting)
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at variance(expression, adjective, uncertain, conflicting)
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bizarre(careless, stupid, unpredictable, unreliable)
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conflicting(adjective, uncertain, incompatible, incoherent)
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contradictory(adjective, uncertain, conflicting, incompatible)
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devious(unpredictable, unreliable)
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directionless(unpredictable, unreliable)
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discordant(adjective, uncertain, conflicting, incompatible)
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discrepant(adjective, uncertain, conflicting, incompatible)
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dissonant(adjective, uncertain, conflicting, incompatible)
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idiosyncratic(unpredictable, unreliable)
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in conflict(expression, adjective, uncertain, conflicting)
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incalculable(unpredictable, unreliable, changeable, erratic)
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incompatible(adjective, uncertain, conflicting, incoherent)
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interrupted(adjective, restless, disturbed, broken)
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meandering(unpredictable, unreliable)
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oddball(unpredictable, unreliable)
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peculiar(unpredictable, unreliable)
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strange(unpredictable, unreliable)
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APASmart Define. (2016). unstable thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/unstable/thesaurus/synonyms
ChicagoSmart Define. 2016. "unstable thesaurus" https://smartdefine.org/unstable/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, unstable thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/unstable/thesaurus/synonyms>.
MLASmart Define. "unstable thesaurus" 26 February 2016. Web. 25 September 2026. <https://smartdefine.org/unstable/thesaurus/synonyms>