Diuturnal
Impervious and diuturnal are semantically related. in sturdy topic. In some cases you can use "Impervious" instead an adjective "Diuturnal".
Impervious
Impervious adjective - Not allowing penetration (as by gas, liquid, or light).
Diuturnal and impervious are semantically related. You can use "Diuturnal" instead an adjective "Impervious".
Nearby Word: imperviously
Mutual synonyms
Cite this Source
Impervious and Diuturnal. (2016). Retrieved 2026, August 10, from https://thesaurus.plus/related/diuturnal/impervious
Diuturnal & Impervious. N.p., 2016. Web. 10 Aug. 2026. <https://thesaurus.plus/related/diuturnal/impervious>.
Impervious or Diuturnal. 2016. Accessed August 10, 2026. https://thesaurus.plus/related/diuturnal/impervious.
Google Ngram Viewer shows how "diuturnal" and "impervious" have occurred on timeline