Grammatical

• POS: Adjective
• HYPHEN: gram=mat=i=cal

CIDE DICTIONARY

Grammatical, a. [L. grammaticus, grammaticalis; Gr. skilled in grammar, knowing one's letters, from a letter: cf. F. grammatical. See Grammar.].

•  Of or pertaining to grammar; of the nature of grammar; as, a grammatical rule.  [1913 Webster]
•  According to the rules of grammar; grammatically correct; as, the sentence is not grammatical; the construction is not grammatical.

OXFORD DICTIONARY

Grammatical, adj.
1 a of or relating to grammar. b determined by grammar, esp. by form or inflection (grammatical gender).
2 conforming to the rules of grammar, or to the formal principles of an art, science, etc.

Derivative

grammatically adv. grammaticalness n.

Etymology

F grammatical or LL grammaticalis f. L grammaticus f. Gk grammatikos (as GRAMMAR)

THESAURUS

Grammatical

adjectival, adverbial, attributive, conjunctive, copulative, correct, descriptive, formal, functional, glossematic, glottochronological, grammatic, graphemic, intransitive, lexicographic, lexicological, lexicostatistical, lingual, linguistic, linking, metalinguistic, morphological, morphophonemic, nominal, participial, philological, phonemic, phonetic, phonological, postpositional, prepositional, pronominal, psycholinguistic, semantic, structural, substantive, syntactic, tagmemic, transitive, verbal