Certain and Impugnable

Opposite meaning words

Certain adjective - Known but not named.

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Impugnable is an antonym for certain.

Nearby Words: certainty, certainly

Impugnable adjective - Subject to being discredited.

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Certain is an antonym for impugnable in topics: questionable, tricky.

Cite this Source

Impugnable and Certain. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/certain/impugnable

Certain & Impugnable. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/certain/impugnable>.

Impugnable or Certain. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/certain/impugnable.

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