IMPERVIOUS Meaning of IMPERVIOUS in English impervious BrE AmE ɪm ˈpɜːv i‿əs ˌɪm- AmE \ -ˈpɝːv-▷ impervious|ly li▷ impervious|ness nəs nɪs Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012