Doubtable and Dubious

Doubtable

Doubtable adjective - Giving good reason for being doubted, questioned, or challenged.
Usage example: her argument rested entirely upon some highly doubtable logic

Dubious and doubtable are semantically related. in questionable topic. In some cases you can use "Dubious" instead an adjective "Doubtable", when it comes to topics like doubtful, at issue.

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

Dubious

Dubious adjective - Giving good reason for being doubted, questioned, or challenged.
Usage example: any letter bearing the signature of Geronimo would be of dubious authenticity, to say the least

Doubtable and dubious are semantically related. You can use "Doubtable" instead an adjective "Dubious".

Nearby Words: dubiety, dubiousness, dubiously
Cite this Source
Dubious and Doubtable. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/doubtable/dubious
Doubtable & Dubious. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/doubtable/dubious>.
Dubious or Doubtable. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/doubtable/dubious.
Google Ngram Viewer shows how "doubtable" and "dubious" have occurred on timeline