Impossible and Unsolvable

Impossible

Impossible adjective - Incapable of being solved or accomplished.
Usage example: fitting everything in my backpack seemed an impossible task

Unsolvable and impossible are semantically related. In some cases you can use "Unsolvable" instead an adjective "Impossible".

Nearby Words: impossibility, impossibly

Unsolvable

Unsolvable adjective - Incapable of being solved or accomplished.
Usage example: an apparently unsolvable problem

Impossible and unsolvable are semantically related. You can use "Impossible" instead an adjective "Unsolvable".
Cite this Source
Unsolvable and Impossible. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/impossible/unsolvable
Impossible & Unsolvable. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/impossible/unsolvable>.
Unsolvable or Impossible. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/impossible/unsolvable.
Google Ngram Viewer shows how "impossible" and "unsolvable" have occurred on timeline