Fastened
Fastened adjective - Firmly closed or secured.
Impervious and fastened are semantically related. In some cases you can use "Impervious" instead an adjective "Fastened".
Impervious
Impervious adjective - Not allowing penetration (as by gas, liquid, or light).
Fastened and impervious are semantically related. Sometimes you can use "Fastened" instead an adjective "Impervious".
Nearby Word: imperviously
Mutual synonyms
Cite this Source
Impervious and Fastened. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/fastened/impervious
Fastened & Impervious. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/fastened/impervious>.
Impervious or Fastened. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/fastened/impervious.
Google Ngram Viewer shows how "fastened" and "impervious" have occurred on timeline