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

The English language alerts contained spelling and grammatical errors. — Derek Gatopoulos, Los Angeles Times, 2 Nov. 2026

The alerts received by Ukrainians — making false claims of high radiation levels, a chemical threat and public disturbances in Kyiv — were written in English with spelling and grammatical errors as well as in a mix of Russian and Ukrainian. — ABC News, 2 Nov. 2026

Reinhardt’s reporting points to the overuse of grammatical structures and specific words, such as serene or careful, which LLM’s tend to use more frequently than humans. — Bon Appétit, Bon Appetit Magazine, 16 Oct. 2026

Learning unfamiliar sounds, vocabulary and grammatical patterns requires the brain to form and strengthen connections. — Karen Stollznow, The Conversation, 18 Sep. 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
• catechol
• statical
• emblematical
• enigmatical
• kinematical
• mathematical
• problematical
• ungrammatical

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