- Definitions|1
- Thesaurus|459
- Abbreviations|0
14 entries under preposterous topic. ×
| absurd(adjective, irrational, implausible, defended) | |
| ridiculous(adjective, absurd, implausible, improbable) | |
| fishy(absurd, unbelievable, implausible, improbable) | |
| flimsy(absurd, unwarranted, untrue, implausible) | |
| inconceivable(absurd, unbelievable, implausible, improbable) | |
| questionable(absurd, unbelievable, implausible, improbable) | |
| suspect(absurd, unbelievable, implausible, improbable) | |
| beyond belief(expression, absurd, unbelievable, implausible) | |
| far-fetched(absurd, unbelievable, implausible, improbable) | |
| incogitable(absurd, unbelievable, implausible, improbable) | |
| insupposable(absurd, unbelievable, implausible, improbable) | |
| out of the question(expression, idiom, absurd, implausible) | |
| outlandish(absurd, unbelievable, implausible, improbable) | |
| rings phony(expression, absurd, unbelievable, implausible) |
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| APA | Smart Define. (2016). untenable thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/untenable/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "untenable thesaurus" https://smartdefine.org/untenable/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2016, untenable thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/untenable/thesaurus/synonyms>. |
| MLA | Smart Define. "untenable thesaurus" 29 March 2016. Web. 24 September 2026. <https://smartdefine.org/untenable/thesaurus/synonyms> |