Synonyms|96Antonyms|1|Broader|0Narrower|0Related|15
1
absurd
1
arguable
1
astonishing(extraordinary, amazing, dubious, incredible)
1
at issue
1
cockamamie(extraordinary, amazing, dubious, astonishing, incredible)
1
cockeyed(extraordinary, amazing, dubious, astonishing, incredible)
1
conjectural
1
controversial
1
deniable
1
equivocal(uncertain, doubtful, dubious, suspect, shady)
1
far-fetched(extraordinary, amazing, incredible)
1
fishy(extraordinary, uncertain, doubtful, dubious, suspect)
1
flaky(extraordinary, amazing, dubious, astonishing, incredible)
1
flimsy(extraordinary, amazing, incredible, unsubstantiated, unconfirmed)
1
for the birds(expression, idiom, extraordinary, amazing, dubious)
1
full of holes(expression, idiom, extraordinary, amazing, dubious)
1
harebrained(extraordinary, amazing, dubious, astonishing, incredible)
1
iffy
1
impossible(extraordinary, amazing, incredible)
1
improbable(extraordinary, amazing, incredible)
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APASmart Define. (2015). open to doubt thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/open_to_doubt/thesaurus/synonyms
ChicagoSmart Define. 2015. "open to doubt thesaurus" https://smartdefine.org/open_to_doubt/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, open to doubt thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/open_to_doubt/thesaurus/synonyms>.
MLASmart Define. "open to doubt thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/open_to_doubt/thesaurus/synonyms>