Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
ungrammatical is an adjective meaning "not grammatical; not conforming to the rules of grammar or accepted usage". It carries one recorded sense.
not grammatical; not conforming to the rules of grammar or accepted usage
Definitions, synonyms and semantic relations for ungrammatical come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.