IMMEMORIAL Meaning of IMMEMORIAL in English immemorial BrE AmE ˌɪm ə ˈmɔːr i‿əl ◂ ˌ•ɪ- -ˈmoʊr- ▷ immemorial|ly i Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012