Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
conventionalised is an adjective meaning "using artistic forms and conventions to create effects; not natural or spontaneous". It carries one recorded sense.
using artistic forms and conventions to create effects; not natural or spontaneous
“a stylized mode of theater production”
Definitions, synonyms and semantic relations for conventionalised come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.