jubilantly vs happily

jubilantly and happily both are adverbs.

Word	Noun	Adjective	Verb	Adverb
jubilantly	No	No	No	Yes
happily	No	No	No	Yes

As adverbs, jubilantly and happily are synonyms defined as:

Other synonyms of jubilantly include blithely, gayly, merrily, mirthfully.

jubilantly (adverb)	happily (adverb)
in a joyous manner	in an unexpectedly lucky way
	in a joyous manner