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