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