Impregnable and Protected

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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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Protected and impregnable are semantically related. In some cases you can use "Protected" instead an adjective "Impregnable".

Protected adjective - Kept safe or defended from danger or injury or loss.

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Impregnable and protected are semantically related. You can use "Impregnable" instead an adjective "Protected".

They're inaccessible places, protected by impregnable mountains, laberintic forests, terrible rivers and ancient magic.

Source: Comic Book / Mini Monsters
It's either too well hidden, too well protected, or otherwise impregnable.

Source: Unsafe Haven
When the army assaulted the Geofront Asuka's Humongous Mecha destroyed foot troops, entire tank battallions, VTOLs with insulting easiness whereas Shinji's giant robot protected her power cord with an impregnable barrier that no projectile could pierce through.

Source: Fan Fic / The Second Try

Cite this Source

Protected and Impregnable. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/impregnable/protected

Impregnable & Protected. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/impregnable/protected>.

Protected or Impregnable. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/impregnable/protected.

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