Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
pleasurably is an adverb meaning "in a very pleasurable manner". It carries one recorded sense.
in a very pleasurable manner
“they were walking along the beach slowly and deliciously”
Definitions, synonyms and semantic relations for pleasurably come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.