ULTIMATUM Meaning of ULTIMATUM in English ultimat|um BrE AmE ˌʌlt ɪ ˈmeɪt |əm -ə- AmE \ -ˈmeɪt̬ |əm -ˈmɑːt̬- ▷ ultimat|a ə▷ ultimat|ums əmz Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012