grammatical

UK: /grəˈmætɪk^əl/ US: /grəˈmætɪkəl/ ,(grə mat′i kəl)

WordReference Random House Learner's Dictionary of American English © 2026

gram•ma•ti•cal /grəˈmætɪkəl/   adj. 

1. obeying the rules of grammar of a language:
   a grammatical sentence.
2. of or relating to the study of grammar or language:
   grammatical rules.
gram•mat•i•cal•ly, adv. 

WordReference Random House Unabridged Dictionary of American English © 2026

gram•mat•i•cal  (grə mat′i kəl), adj. 

1. Grammar of or pertaining to grammar:
   grammatical analysis.
2. Grammar conforming to standard usage:
   grammatical speech.

• Greek grammatikós knowing one's letters, equivalent. to grammat-, stem of grámma letter + -ikos -ic) + -al¹
• Latin grammatic(us) (
• 1520–30

gram•mat′i•cal•ly, adv. 

Collins Concise English Dictionary © HarperCollins Publishers::

grammatical / ɡrəˈmætɪk^əl/ adjective

1. of or relating to grammar
2. (of a sentence) well formed; regarded as correct and acceptable by native speakers of the language

gramˈmatically adverb

gramˈmaticalness noun