Impregnable and Insurmountable

Impregnable

Impregnable adjective - Incapable of being defeated, overcome, or subdued.
Usage example: an impregnable fortress that had foiled one invader after another over the centuries

Insurmountable is a synonym for impregnable. In some cases you can use "Insurmountable" instead an adjective "Impregnable".

Insurmountable

Insurmountable adjective - Incapable of being defeated, overcome, or subdued.
Usage example: the familiar story of the underdog who ultimately triumphs despite insurmountable odds

Impregnable is a synonym for insurmountable in impossible topic. You can use "Impregnable" instead an adjective "Insurmountable".

Nearby Word: insurmountability
Cite this Source
Insurmountable and Impregnable. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/impregnable/insurmountable
Impregnable & Insurmountable. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/impregnable/insurmountable>.
Insurmountable or Impregnable. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/impregnable/insurmountable.
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