Certain and Doubtable

Opposite meaning words

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

Usage example: up to this point there's been no certain evidence that a crime has been committed

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Doubtable is an antonym for certain.

Nearby Words: certainty, certainly

Doubtable adjective - Giving good reason for being doubted, questioned, or challenged.

Usage example: her argument rested entirely upon some highly doubtable logic

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Certain is an antonym for doubtable in topics: questionable, doubtful, at issue.

Nearby Words: doubt, doubtful, doubting, doubted, doubter

Cite this Source

Doubtable and Certain. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/certain/doubtable

Certain & Doubtable. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/certain/doubtable>.

Doubtable or Certain. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/certain/doubtable.

Google Ngram Viewer shows how "certain" and "doubtable" have occurred on timeline