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