Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
licentiously is an adverb meaning "in a licentious and promiscuous manner". It carries one recorded sense.
in a licentious and promiscuous manner
“this young girl has to share a room with her mother who lives promiscuously”
Definitions, synonyms and semantic relations for licentiously come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.