Similar Words
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Ungrammatical — synonyms, ungrammatical antonyms, definition

1. ungrammatical (Adjective)

1 synonym
ill-formed
1 antonym
grammatical
1 definition

ungrammatical (Adjective) — Not grammatical; not conforming to the rules of grammar or accepted usage. ex. "Grammar rests on the possibility of differentiating grammatical from ungrammatical expressions"