(a.) Not pervious; not admitting of entrance or passage through; as, a substance impervious to water or air.
Impervious tanım:
Kelime: im·per·vi·ous Söyleniş:(")im-'p&r-vE-&s İşlev:adjective Kökeni: Latin impervius, from in- pervius pervious 1 a : not allowing entrance or passage : IMPENETRABLE a coat impervious to rain b : not capable of being damaged or harmed a carpet impervious to rough treatment 2 : not capable of being affected or disturbed impervious to criticism - im·per·vi·ous·lyadverb - im·per·vi·ous·nessnoun