IMPERMEABILITY Meaning of IMPERMEABILITY in English impermeability BrE AmE ɪm ˌpɜːm i‿ə ˈbɪl ət i ˌ•ˌ•- AmE \ -ˌpɝːm i‿ə ˈbɪl ət̬ i Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012