Impervious and Unpassable

Related words

Impervious adjective - Not allowing penetration (as by gas, liquid, or light).

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Unpassable and impervious are semantically related. In some cases you can replace term "Unpassable" with "Impervious", this adjectives are similar.

Nearby Word: imperviously

Unpassable adjective - Incapable of being passed.

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Impervious and unpassable are semantically related. You can use "Impervious" instead an adjective "Unpassable".

Cite this Source

Unpassable and Impervious. (2016). Retrieved 2026, July 29, from https://thesaurus.plus/related/impervious/unpassable

Impervious & Unpassable. N.p., 2016. Web. 29 Jul. 2026. <https://thesaurus.plus/related/impervious/unpassable>.

Unpassable or Impervious. 2016. Accessed July 29, 2026. https://thesaurus.plus/related/impervious/unpassable.

Google Ngram Viewer shows how "impervious" and "unpassable" have occurred on timeline