Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
fantabulous is an adjective meaning "very good; of the highest quality". It carries one recorded sense.
very good; of the highest quality
“made an excellent speech”
“he was a splendid teacher”
“a first-class mind”
colloquialism · United Kingdom
Definitions, synonyms and semantic relations for fantabulous come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.