IMBECILE Meaning of IMBECILE in English imbecile BrE AmE ˈɪm bə siː ə l -bɪ-, -saɪ ə l AmE \ -bəs ə l -ɪl (*)▷ imbecile|s z Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012