Inconceivable and Questionable

Inconceivable

Inconceivable adjective - Too extraordinary or improbable to believe.
Usage example: the formerly inconceivable idea that humans could land on the moon

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

Nearby Word: inconceivability

Questionable

Questionable adjective - Not likely to be true or to occur.
Usage example: it's questionable that he will show up tonight considering all the bad weather we're having

Inconceivable and questionable are semantically related. Sometimes you can use "Inconceivable" instead an adjective "Questionable".

Cite this Source
Questionable and Inconceivable. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/inconceivable/questionable
Inconceivable & Questionable. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/inconceivable/questionable>.
Questionable or Inconceivable. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/inconceivable/questionable.
Google Ngram Viewer shows how "inconceivable" and "questionable" have occurred on timeline