adjective🔗ShareAgrammatical, incorrectIn violation of one or more of the rules and conventions of a language as defined by the grammar, resulting in unacceptable or incorrect usage."The student's essay contained several ungrammatical sentences, making it difficult to understand their argument. "La dissertation de l'étudiant contenait plusieurs phrases incorrectes, ce qui rendait difficile la compréhension de son argument.grammarlanguagelinguisticsChat with AIVocabulary GamePractice Reading