Impregnable and Insecure

Opposite meaning words

Impregnable adjective - Incapable of being defeated, overcome, or subdued.

Usage example: an impregnable fortress that had foiled one invader after another over the centuries

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Insecure is an antonym for impregnable in invulnerable topic.

Insecure adjective - Not tightly fastened, tied, or stretched.

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Impregnable is an antonym for insecure.

Nearby Words: insecurity, insecurely

Cite this Source

Insecure and Impregnable. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/impregnable/insecure

Impregnable & Insecure. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/impregnable/insecure>.

Insecure or Impregnable. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/impregnable/insecure.

Google Ngram Viewer shows how "impregnable" and "insecure" have occurred on timeline