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