Imperviousness - definition of imperviousness by . . . - The Free Dictionary Define imperviousness imperviousness synonyms, imperviousness pronunciation, imperviousness translation, English dictionary definition of imperviousness adj 1 Incapable of being penetrated: a material impervious to water 2 Incapable of being affected: impervious to fear im·per′vi·ous·ly adv
imperviousness - Wiktionary, the free dictionary Noun imperviousness (uncountable) The state of being impervious The quality of being unable to be affected The ability to prevent any penetration Synonyms: impenetrability, impermeability