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. In some cases you can use "Impregnable" instead an adjective "Insurmountable".
Nearby Word: insurmountability
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. You can use "Insurmountable" instead an adjective "Impregnable".
Mutual synonyms
Related pairs
- secure and insurmountable
- secure and impregnable
- resolute and insurmountable
- resolute and impregnable
- indomitable and insurmountable
- indomitable and impregnable
- irresistible and insurmountable
- irresistible and impregnable
- overwhelming and insurmountable
- overwhelming and impregnable
- impenetrable and insurmountable
- impenetrable and impregnable
- inviolable and insurmountable
- inviolable and impregnable
Cite this Source
Impregnable and Insurmountable. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/insurmountable/impregnable
Insurmountable & Impregnable. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/insurmountable/impregnable>.
Impregnable or Insurmountable. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/insurmountable/impregnable.
Google Ngram Viewer shows how "insurmountable" and "impregnable" have occurred on timeline