Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
distressfully is an adverb meaning "with distress". It carries one recorded sense.
with distress
“`Doctor Rother says it's his only chance,' she added distressfully”
Definitions, synonyms and semantic relations for distressfully come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.