Impossible and Insurmountable

Impossible

Impossible adjective - Not capable of occurring or being accomplished or dealt with.
Usage example: an impossible dream

Insurmountable is a synonym for impossible in beyond the bounds of possibility topic. In some cases you can use "Insurmountable" instead an adjective "Impossible".

Nearby Words: impossibility, impossibly

Insurmountable

Insurmountable adjective - Not capable of being surmounted or overcome.
Usage example: insurmountable disadvantages

Impossible is a synonym for insurmountable in overwhelming topic. You can use "Impossible" instead an adjective "Insurmountable", if it concerns topics such as insuperable.

Nearby Word: insurmountability
Cite this Source
Insurmountable and Impossible. (2016). Retrieved 2026, July 28, from https://thesaurus.plus/related/impossible/insurmountable
Impossible & Insurmountable. N.p., 2016. Web. 28 Jul. 2026. <https://thesaurus.plus/related/impossible/insurmountable>.
Insurmountable or Impossible. 2016. Accessed July 28, 2026. https://thesaurus.plus/related/impossible/insurmountable.
Google Ngram Viewer shows how "impossible" and "insurmountable" have occurred on timeline