say it: di-LAHYT-fuh-lee
delightfully is an adverb meaning "in a delightful manner". It carries one recorded sense.
in a delightful manner
“the farm house, though in itself a small one, is delightfully situated”
Definitions, synonyms and semantic relations for delightfully come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.