Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
exceptionable is an adjective meaning "liable to objection or debate; used of something one might take exception to". It carries one recorded sense.
liable to objection or debate; used of something one might take exception to
“a thoroughly unpleasant highly exceptionable piece of writing”
“found the politician's views objectionable”
Definitions, synonyms and semantic relations for exceptionable come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.