'Grammatically' definitions:

Definition of 'grammatically'

From: WordNet
adverb
In a grammatical manner; "this child already speaks grammatically" [ant: ungrammatically]

Definition of 'Grammatically'

From: GCIDE
  • Grammatical \Gram*mat"ic*al\, a. [L. grammaticus, grammaticalis; Gr. ? skilled in grammar, knowing one's letters, from ? a letter: cf. F. grammatical. See Grammar.]
  • 1. Of or pertaining to grammar; of the nature of grammar; as, a grammatical rule. [1913 Webster]
  • 2. According to the rules of grammar; grammatically correct; as, the sentence is not grammatical; the construction is not grammatical. --{Gram*mat"ic*al*ly}, adv. -- {Gram*mat"ic*al*ness}, n. [1913 Webster]