ATONAL Meaning of ATONAL in English atonal BrE AmE ( ˌ ) eɪ ˈtəʊn ə l æ-, ə- AmE \ -ˈtoʊn-▷ atonal|ism ˌɪz ə m▷ atonal|ly i Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012