Doubtable and Questionable

Doubtable

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

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

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

Questionable

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

Doubtable and questionable are semantically related. You can use "Doubtable" instead an adjective "Questionable".

Cite this Source
Questionable and Doubtable. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/doubtable/questionable
Doubtable & Questionable. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/doubtable/questionable>.
Questionable or Doubtable. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/doubtable/questionable.
Google Ngram Viewer shows how "doubtable" and "questionable" have occurred on timeline