say it: HAP-uh-lee
happily is an adverb meaning "in a joyous manner". It carries 2 recorded senses.
in an unexpectedly lucky way
“happily he was not injured”
Definitions, synonyms and semantic relations for happily 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.