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

And as Schertzer pointed out, there were too many students, too many pages to go through to make all those grammatical edits. —Denise Crosby, Chicago Tribune, 24 Apr. 2026

Word endings did a lot more grammatical work, and verbs followed more complicated patterns. —Valerie M. Fridland, The Conversation, 21 Apr. 2026

The text might contain grammatical and spelling errors. —Susan Tompor, Freep.com, 23 Mar. 2026

Some people—in fear of being accused of using AI—are purposely inserting grammatical errors or typos to make their prose look more human, experts say. —Angela Haupt, Time, 9 Feb. 2026

Word History

Etymology

borrowed from Middle French and Late Latin; Middle French grammaticale, borrowed from Late Latin grammaticālis, from Latin grammatica grammar + -ālis -al entry 1

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