Questionable and Unconceivable

Questionable

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

Unconceivable and questionable are semantically related. In some cases you can use "Unconceivable" instead an adjective "Questionable".

Unconceivable

Unconceivable adjective - Too extraordinary or improbable to believe.
Usage example: it's unconceivable that a once-promising actor could end up this way

Questionable and unconceivable are semantically related. Sometimes you can use "Questionable" instead an adjective "Unconceivable".
Cite this Source
Unconceivable and Questionable. (2016). Retrieved 2026, August 01, from https://thesaurus.plus/related/questionable/unconceivable
Questionable & Unconceivable. N.p., 2016. Web. 01 Aug. 2026. <https://thesaurus.plus/related/questionable/unconceivable>.
Unconceivable or Questionable. 2016. Accessed August 01, 2026. https://thesaurus.plus/related/questionable/unconceivable.
Google Ngram Viewer shows how "questionable" and "unconceivable" have occurred on timeline