Questionable
Questionable adjective - Giving good reason for being doubted, questioned, or challenged.
Usage example: the runner's unexpected first-place finish is questionable, so a drug test has been ordered
Unquestionable
Unquestionable adjective - Not capable of being challenged or proved wrong.
Usage example: a person of unquestionable integrity
Both words in one sentence
- The titular Dominic from Dominic Deegan alledgedly getting away with far too many morally questionable acts despite supposedly being an unquestionable hero, is a big reason for the comic's large snark and HateDoms.
Source: Karma Houdini Warranty
Cite this Source
Unquestionable and Questionable. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/questionable/unquestionable
Questionable & Unquestionable. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/questionable/unquestionable>.
Unquestionable or Questionable. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/questionable/unquestionable.
Google Ngram Viewer shows how "questionable" and "unquestionable" have occurred on timeline