Impregnable and Weak
Opposite meaning words
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
Weak is an antonym for impregnable.
Weak
Cite this Source
Weak and Impregnable. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/impregnable/weak
Impregnable & Weak. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/impregnable/weak>.
Weak or Impregnable. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/impregnable/weak.
Google Ngram Viewer shows how "impregnable" and "weak" have occurred on timeline