Impossible and Insoluble

Impossible

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

Insoluble and impossible are semantically related. in absurd topic. In some cases you can use "Insoluble" instead an adjective "Impossible".

Nearby Words: impossibility, impossibly

Insoluble

Insoluble adjective - Incapable of being solved or accomplished.
Usage example: the seemingly insoluble mystery concerning the identity of the people who built these ancient structures

Impossible and insoluble are semantically related. Sometimes you can use "Impossible" instead an adjective "Insoluble".

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