Insolvable and Preposterous

Insolvable

Insolvable adjective - Incapable of being solved or accomplished.
Usage example: faced with the perennially insolvable dilemma of having to choose between career and family

Preposterous and insolvable are semantically related. In some cases you can use "Preposterous" instead an adjective "Insolvable".

Preposterous

Preposterous adjective - Conceived or made without regard for reason or reality.

Insolvable and preposterous are semantically related. Sometimes you can use "Insolvable" instead an adjective "Preposterous".
Cite this Source
Preposterous and Insolvable. (2016). Retrieved 2026, July 28, from https://thesaurus.plus/related/insolvable/preposterous
Insolvable & Preposterous. N.p., 2016. Web. 28 Jul. 2026. <https://thesaurus.plus/related/insolvable/preposterous>.
Preposterous or Insolvable. 2016. Accessed July 28, 2026. https://thesaurus.plus/related/insolvable/preposterous.
Google Ngram Viewer shows how "insolvable" and "preposterous" have occurred on timeline