Insurmountable and Preposterous

Insurmountable

Insurmountable adjective - Incapable of being defeated, overcome, or subdued.

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

Nearby Word: insurmountability

Preposterous

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

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