Synonyms|42Antonyms|19|Broader|0Narrower|0Related|1

14 entries under preposterous topic. ×

1
incogitable(adjective, extraordinary, belief, strange, absurd)
1
inconceivable(adjective, belief, ridiculous, absurd, unbelievable)
0
absurd(adjective, unbelievable, implausible, improbable)
0
beyond belief(expression, adjective, absurd, implausible)
0
far-fetched(adjective, absurd, unbelievable, implausible)
0
fishy(adjective, absurd, unbelievable, implausible)
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flimsy(adjective, absurd, unbelievable, implausible)
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out of the question(expression, adjective, idiom, absurd, implausible)
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outlandish(adjective, absurd, unbelievable, implausible)
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questionable(adjective, absurd, unbelievable, implausible)
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ridiculous(adjective, absurd, unbelievable, implausible)
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rings phony(expression, adjective, absurd, implausible)
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suspect(adjective, absurd, unbelievable, implausible)
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untenable(adjective, absurd, unbelievable, implausible)
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APASmart Define. (2013). insupposable thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/insupposable/thesaurus/synonyms
ChicagoSmart Define. 2013. "insupposable thesaurus" https://smartdefine.org/insupposable/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2013, insupposable thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/insupposable/thesaurus/synonyms>.
MLASmart Define. "insupposable thesaurus" 18 May 2013. Web. 24 September 2026. <https://smartdefine.org/insupposable/thesaurus/synonyms>