Impregnable
Impregnable adjective - Incapable of being defeated, overcome, or subdued.
Loyal and impregnable are semantically related. In some cases you can use "Loyal" instead an adjective "Impregnable".
Loyal
Loyal adjective - Firm in one's allegiance to someone or something.
Impregnable and loyal are semantically related. Sometimes you can use "Impregnable" instead an adjective "Loyal".
Mutual synonyms
Cite this Source
Loyal and Impregnable. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/impregnable/loyal
Impregnable & Loyal. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/impregnable/loyal>.
Loyal or Impregnable. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/impregnable/loyal.
Google Ngram Viewer shows how "impregnable" and "loyal" have occurred on timeline