Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
rebarbative is an adjective meaning "serving or tending to repel". It carries one recorded sense.
serving or tending to repel
“he became rebarbative and prickly and spiteful”
“I find his obsequiousness repellent”
Definitions, synonyms and semantic relations for rebarbative come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.