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