Condensed
Impregnable and condensed are semantically related. In some cases you can use "Impregnable" instead an adjective "Condensed".
Impregnable
Impregnable adjective - Impossible to get through or into.
Usage example: the castle's supposedly impregnable walls
Condensed and impregnable are semantically related. Sometimes you can use "Condensed" instead an adjective "Impregnable".
Mutual synonyms
Cite this Source
Impregnable and Condensed. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/condensed/impregnable
Condensed & Impregnable. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/condensed/impregnable>.
Impregnable or Condensed. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/condensed/impregnable.
Google Ngram Viewer shows how "condensed" and "impregnable" have occurred on timeline