Synonyms|114Antonyms|60|Broader|6Narrower|5Related|66
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inapplicability
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inapplicableness
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incapability
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incapacity
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incompatibility
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inconceivable
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inconceivableness
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incredibility
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irony
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job
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nonexistence
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nonstarter(noun, no-no)
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option
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out of the question
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possibly
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preference
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rasper
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ridiculousness(noun, awkwardness, uselessness, impracticality, unfeasibility)
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selection
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sour
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APASmart Define. (2015). impossibility thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/impossibility/thesaurus/synonyms
ChicagoSmart Define. 2015. "impossibility thesaurus" https://smartdefine.org/impossibility/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, impossibility thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/impossibility/thesaurus/synonyms>.
MLASmart Define. "impossibility thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/impossibility/thesaurus/synonyms>