Improbable
Improbable adjective - Not likely to be true or to occur.
Usage example: it seems improbable that the two writers never met since they traveled in the same social circles
Unthinkable is a synonym for improbable in unbelievable topic. In some cases you can use "Unthinkable" instead an adjective "Improbable". popular alternative
Nearby Words: improbability, improbably
Unthinkable
Unthinkable adjective - Too extraordinary or improbable to believe.
Improbable is a synonym for unthinkable in incredible topic. You can use "Improbable" instead an adjective "Unthinkable", if it concerns topics such as unbelievable. popular alternative
Nearby Word: unthinking
Mutual synonyms
Related pairs
- rare and improbable
- rare and unthinkable
- dubious and improbable
- dubious and unthinkable
- questionable and improbable
- questionable and unthinkable
- doubtful and improbable
- doubtful and unthinkable
- implausible and improbable
- implausible and unthinkable
- extraordinary and improbable
- extraordinary and unthinkable
- incredible and improbable
- incredible and unthinkable
Cite this Source
Unthinkable and Improbable. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/improbable/unthinkable
Improbable & Unthinkable. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/improbable/unthinkable>.
Unthinkable or Improbable. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/improbable/unthinkable.
Google Ngram Viewer shows how "improbable" and "unthinkable" have occurred on timeline