Akademik

mirthfully
adverb
in a joyous manner
-

they shouted happily

Syn: ↑happily, ↑merrily, ↑gayly, ↑blithely, ↑jubilantly
Ant: ↑unhappily (for: ↑happily)
Derived from adjective: ↑jubilant (for: ↑jubilantly), ↑blithe (for: ↑blithely), ↑gay (for: ↑gayly), ↑mirthful, ↑merry (for: ↑merrily), ↑happy (for: ↑happily)

Useful english dictionary. 2012.