Synonyms|101Antonyms|28|Broader|0Narrower|0Related|29

14 entries under preposterous topic. ×

2
inconceivable(adjective, great, extraordinary, belief, amazing)
1
beyond belief(expression, adjective, extraordinary, absurd, implausible)
1
far-fetched(adjective, extraordinary, amazing, absurd, implausible)
1
fishy(adjective, extraordinary, amazing, absurd, implausible)
1
flimsy(adjective, extraordinary, amazing, absurd, implausible)
1
insupposable(adjective, extraordinary, belief, strange, absurd)
1
outlandish(adjective, extraordinary, amazing, absurd, implausible)
1
questionable(adjective, extraordinary, amazing, absurd, implausible)
1
suspect(adjective, extraordinary, amazing, absurd, implausible)
0
absurd(adjective, unbelievable, implausible, improbable)
0
out of the question(expression, adjective, idiom, absurd, implausible)
0
ridiculous(adjective, absurd, unbelievable, implausible)
0
rings phony(expression, adjective, absurd, implausible)
0
untenable(adjective, absurd, unbelievable, implausible)
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ChicagoSmart Define. 2013. "incogitable thesaurus" https://smartdefine.org/incogitable/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2013, incogitable thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/incogitable/thesaurus/synonyms>.
MLASmart Define. "incogitable thesaurus" 19 May 2013. Web. 23 September 2026. <https://smartdefine.org/incogitable/thesaurus/synonyms>