Impervious
Impervious adjective - Not allowing penetration (as by gas, liquid, or light).
Unattainable and impervious are semantically related In some cases you can use "Unattainable" instead an adjective "Impervious".
Nearby Word: imperviously
Unattainable
Unattainable adjective - Hard or impossible to get to or get at.
Impervious and unattainable are semantically related in impossible topic. Sometimes you can use "Impervious" instead an adjective "Unattainable", if it concerns topics such as inaccessible.
Mutual synonyms
Cite this Source
Unattainable and Impervious. (2016). Retrieved 2026, July 28, from https://thesaurus.plus/related/impervious/unattainable
Impervious & Unattainable. N.p., 2016. Web. 28 Jul. 2026. <https://thesaurus.plus/related/impervious/unattainable>.
Unattainable or Impervious. 2016. Accessed July 28, 2026. https://thesaurus.plus/related/impervious/unattainable.
Google Ngram Viewer shows how "impervious" and "unattainable" have occurred on timeline