QUINTESSENTIAL Meaning of QUINTESSENTIAL in English quintessential BrE AmE ˌkwɪnt ɪ ˈsen t ʃ ə l ◂ -ə- AmE \ ˌkwɪn t̬ ə-▷ quintessential|ly i Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012