Main Entry: im·per·vi·ous
Pronunciation: \(ˌ)im-ˈpər-vē-əs\
Function: adjective
Etymology: Latin impervius, from in- + pervius pervious
Date: 1640
1 a : not allowing entrance or passage : impenetrable b : not capable of being damaged or harmed
2 : not capable of being affected or disturbed
2 : not capable of being affected or disturbed
— im·per·vi·ous·ly adverb
— im·per·vi·ous·ness noun
