gram·mat·i·cal 
/grəˈmætɪkəl/ adjective
/grəˈmætɪkəl/ adjective 1 : of or relating to grammar
▪ a grammatical error ▪ grammatical rules 2 : following the rules of grammar
▪ That sentence is not grammatical.
▪ a grammatical error ▪ grammatical rules
▪ That sentence is not grammatical.
— gram·mat·i·cal·ly /grəˈmætɪkli/ adverb
▪ That sentence is grammatically incorrect.
/grəˈmætɪkli/ adverb ▪ That sentence is grammatically incorrect.
