grammatical

adjective

gram·​mat·​i·​cal grə-ˈma-ti-kəl 

1

: of or relating to grammar

2

: conforming to the rules of grammar

a grammatical sentence

grammaticality

grə-ˌma-tə-ˈka-lə-tē 

noun

grammaticalness

grə-ˈma-ti-kəl-nəs 

noun

Examples of grammatical in a Sentence

That sentence is not grammatical.

Recent Examples on the Web

Editor’s Note: Please be mindful that this transcript does not go through our standard editorial process and may contain inaccuracies and grammatical errors. —Steve Bender, Southern Living, 20 Sep. 2025

New research shows that wherever human populations mix, their languages blend as well When speakers of different languages meet, their words, sounds and even grammatical structures mingle in surprising ways. —Cody Cottier, Scientific American, 18 Sep. 2025

Editor’s Note: Transcriptions of episodes of the Outside Podcast are created with a mix of speech recognition software and human transcribers, and may contain some grammatical errors or slight deviations from the audio. —Outside Online, 10 Sep. 2025

The following guidance is a humble suggestion: The principles of good defending are similar to the grammatical rules in the English language. —Carl Anka, New York Times, 21 Aug. 2025

Word History

Etymology

see grammar

First Known Use

1530, in the meaning defined at sense 1

Phrases Containing grammatical

• grammatical gender
• grammatical meaning

Rhymes for grammatical

• dogmatical
• fanatical
• sabbatical
• emblematical
• enigmatical
• kinematical
• mathematical
• problematical
• ungrammatical
• statical

Kids Definition

grammatical

adjective

gram·​mat·​i·​cal grə-ˈmat-i-kəl 

1

: of or relating to grammar

2

: conforming to the rules of grammar

a grammatical sentence

grammaticality

-ˌmat-ə-ˈkal-ət-ē 

noun

grammatically

-ˈmat-i-k(ə-)lē 

adverb

grammaticalness

-kəl-nəs 

noun