Impregnable
Impregnable adjective - Incapable of being defeated, overcome, or subdued.
Persistent and impregnable are semantically related. In some cases you can use "Persistent" instead an adjective "Impregnable".
Persistent
Persistent adjective - Continuing despite difficulties, opposition, or discouragement.
Impregnable and persistent are semantically related. Sometimes you can use "Impregnable" instead an adjective "Persistent".
Mutual synonyms
Related pairs
- firm and impregnable
- firm and persistent
- resolute and impregnable
- resolute and persistent
- fixed and impregnable
- fixed and persistent
- steadfast and impregnable
- steadfast and persistent
- unyielding and impregnable
- unyielding and persistent
- immovable and impregnable
- immovable and persistent
- stable and impregnable
- stable and persistent
Cite this Source
Persistent and Impregnable. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/impregnable/persistent
Impregnable & Persistent. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/impregnable/persistent>.
Persistent or Impregnable. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/impregnable/persistent.
Google Ngram Viewer shows how "impregnable" and "persistent" have occurred on timeline