Questionable and Undeniable

Opposite meaning words

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

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Undeniable is an antonym for questionable.

Undeniable adjective - Not capable of being challenged or proved wrong.

Usage example: undeniable evidence of guilt

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Questionable is an antonym for undeniable in definite topic.

Nearby Word: undeniably

Cite this Source

Undeniable and Questionable. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/questionable/undeniable

Questionable & Undeniable. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/questionable/undeniable>.

Undeniable or Questionable. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/questionable/undeniable.

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