Impervious
Impervious adjective - Impossible to get through or into.
Usage example: the rain forest is impervious to all but the most dedicated explorers
Stiff and impervious are semantically related. In some cases you can use "Stiff" instead an adjective "Impervious".
Nearby Word: imperviously
Stiff
Stiff adjective - Incapable of or highly resistant to bending.
Impervious and stiff are semantically related. Sometimes you can use "Impervious" instead an adjective "Stiff".
Mutual synonyms
Related pairs
Cite this Source
Stiff and Impervious. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/impervious/stiff
Impervious & Stiff. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/impervious/stiff>.
Stiff or Impervious. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/impervious/stiff.
Google Ngram Viewer shows how "impervious" and "stiff" have occurred on timeline