UNGRAMMATICAL Meaning of UNGRAMMATICAL in English ungrammatical BrE AmE ˌʌn ɡrə ˈmæt ɪk ə l ◂ ⇨ˌʌŋ- AmE \ -ˈmæt̬-▷ ungrammatical|ly ‿i Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012