Dubious and Impugnable

Dubious

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

Impugnable and dubious are semantically related In some cases you can use "Impugnable" instead an adjective "Dubious".

Nearby Words: dubiety, dubiousness, dubiously

Impugnable

Impugnable adjective - Subject to being discredited.

Dubious and impugnable are semantically related in questionable topic. You can use "Dubious" instead an adjective "Impugnable", if it concerns topics such as doubtful, tricky.
Cite this Source
Impugnable and Dubious. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/dubious/impugnable
Dubious & Impugnable. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/dubious/impugnable>.
Impugnable or Dubious. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/dubious/impugnable.
Google Ngram Viewer shows how "dubious" and "impugnable" have occurred on timeline