Search Dictionary
Definition of ungrammatical

ungrammatical

/ˌʌnɡrəˈmætɪkəl/
un · gram · mat · i · cal
Adverb:ungrammatically
JUMP TO:

ungrammatical Lexical Profile

ungrammatical Game Scores & Validity

• adjective

1

Not conforming to the established rules or structural principles of a language's grammar.

Example

"The editor rewrote several ungrammatical sentences in the manuscript before sending it to print."

Synonyms
View all synonyms for ungrammatical
Antonyms
View all antonyms for ungrammatical

Word Nuance & Usage

In descriptive linguistics, 'ungrammatical' refers to a sentence that no native speaker would naturally produce (marked with an asterisk), whereas in everyday usage it often simply means violating prescriptive rules of formal style.

• Rhymes for ungrammatical

• Nearby Words

ungraciously
ungraciousness
ungraded
ungrammatical
ungrammatically
ungraspable
ungrateful

Cite this Entry

Wordmom. (2026). Definition of Ungrammatical. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/ungrammatical
Built for writers, students, and competitive word game players, Wordmom combines an uncluttered English dictionary and thesaurus with fast, pattern-based word finders so you can verify definitions, synonyms, and high-scoring tile plays in one place.
Word Games & Solvers
Word FinderScrabble Word FinderWords With Friends CheatWordle SolverAnagram Solver
Dictionary & Reference
DictionarySynonymsAntonymsWords
Community
Contact UsEditorial PolicyPrivacy PolicyTerms and Conditions
© 2016–2026 Wordmom Network. All rights reserved. Made with for word lovers everywhere.
Disclaimer: SCRABBLE® is a registered trademark. All intellectual property rights in and to the game are owned in the U.S.A. and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, a subsidiary of Mattel Inc. Mattel and Spear are not affiliated with Hasbro. Words With Friends® is a registered trademark of Zynga Inc. Wordle® is a registered trademark of The New York Times Company. Other referenced game titles and tournament lexicon codes (including NASPA NWL and WESPA/HarperCollins CSW) are trademarks of their respective owners. Wordmom is an independent reference utility for educational and entertainment purposes and is not affiliated with, sponsored by, or endorsed by Hasbro, Mattel, Spear, Zynga, The New York Times Company, NASPA, WESPA, or HarperCollins Publishers. All game names are referenced strictly under nominative fair use to indicate compatibility.