Impregnable
Impregnable adjective - Impossible to get through or into.
Usage example: the castle's supposedly impregnable walls
Impassable and impregnable are semantically related in impenetrable topic. In some cases you can use "Impassable" instead an adjective "Impregnable".
Impassable
Impassable adjective - Impossible to get through or into.
Usage example: the road was impassable until snowplows cleared it
Impregnable and impassable are semantically related in impenetrable topic. You can use "Impregnable" instead an adjective "Impassable".
Nearby Words: impasse, impassible
Mutual synonyms
Related pairs
- secure and impregnable
- secure and impassable
- firm and impregnable
- firm and impassable
- unyielding and impregnable
- unyielding and impassable
- tight and impregnable
- tight and impassable
- solid and impregnable
- solid and impassable
- indomitable and impregnable
- indomitable and impassable
- impenetrable and impregnable
- impenetrable and impassable
Cite this Source
Impassable and Impregnable. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/impregnable/impassable
Impregnable & Impassable. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/impregnable/impassable>.
Impassable or Impregnable. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/impregnable/impassable.
Google Ngram Viewer shows how "impregnable" and "impassable" have occurred on timeline