UNFASTEN Meaning of UNFASTEN in English unfasten BrE AmE ( ˌ ) ʌn ˈfɑːs ə n § -ˈfæs- AmE -ˈfæs-▷ unfasten|ed d▷ unfasten|ing ‿ɪŋ▷ unfasten|s z Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012