| a. | 1. | Of or pertaining to grammar; of the nature of grammar; |
| 2. | According to the rules of grammar; grammatically correct; |
| Adj. | 1. | grammatical - of or pertaining to grammar; "the grammatic structure of a sentence"; "grammatical rules"; "grammatical gender" Synonyms: grammatic |
| 2. | grammatical - conforming to the rules of grammar or usage accepted by native speakers; "spoke in grammatical sentences" Synonyms: well-formed Antonyms: ill-formed, ungrammatical - not grammatical; not conforming to the rules of grammar or accepted usage |