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