Synonyms for Happily:
lightheartedly, agreeably, optimistically, genially, amiably, affably, cheerily, readily, Jollily, pleasantly, gaily, gladly, cordially, complaisantly, buoyantly, spiritedly, jauntily, merrily, brightly, warmly, congenially, cheerfully, sunnily, joyfully.
delightfully, pleasantly, euphorically, satisfyingly, ecstatically, blissfully, gratifyingly.
gracefully, satisfyingly, fortunately.
•with joy, pleasure (adverb)
peacefully, sincerely, blissfully, joyfully, lightly, lovingly, blithely, buoyantly, agreeably, cheerfully, willingly, gaily, gladly, brightly, heartily, lightheartedly, optimistically, freely, merrily, delightfully.
amiably, genially, affably.
cheerily, cordially, optimistically, joyfully, lightheartedly, affably, buoyantly, pleasantly, spiritedly, blithely, warmly, complaisantly, mirthfully, congenially, cheerfully, genially, agreeably, brightly, Jollily, jauntily, amiably, merrily, sunnily.
gracefully, successfully, fortunately.
delightfully, blissfully, ecstatically, cheerfully, pleasantly, joyfully, satisfyingly, euphorically, gratifyingly.
n.hooray, excellent, lovely, good, yippee, AAH, thank God/goodness/heaven(s), will wonders never cease?, GOTCHA. obligingly, only too, readily, submissively, gamely. •happily (noun)
jubilantly, blithely, with happiness, mirthfully, gayly, merrily.
gracefully, readily. freely. •joyously
•Other relevant words:
glad, gayly, mirthfully, successfully, blithely, gracefully, sincerely, fortunately, happy, jubilantly, lightly, cheerful, gladly, readily, peacefully, willingly, freely, with happiness, lovingly, gaily, pleased, heartily.