UNMERCIFUL Meaning of UNMERCIFUL in English unmerciful BrE AmE ʌn ˈmɜːs ɪ f ə l ˌ•-, -ə-, -fʊl AmE \ -ˈmɝːs-▷ unmerciful|ly ‿i▷ unmerciful|ness nəs nɪs Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012