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