5 entries under impossibility topic. ×

6
absurdity(noun, absurdity, irrationality)
4
inconceivability(noun, improbability, unlikelihood)
3
impossibility(noun, absurdity)
3
impracticability
1
unattainability
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APASmart Define. (2015). implausibility thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/implausibility/thesaurus/synonyms
ChicagoSmart Define. 2015. "implausibility thesaurus" https://smartdefine.org/implausibility/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, implausibility thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/implausibility/thesaurus/synonyms>.
MLASmart Define. "implausibility thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/implausibility/thesaurus/synonyms>