Synonyms of hilarity

1 Syllable
mirth, rec, cheers, joy, fun, cheer, yuck, glee
2 Syllables
gaieties, joyance, pealer, crack-ups, laughter, gaiety, gurgling, shrieker, crower, cackler, gladness, giggler, roarer, delight, heehaw, laughters, shouter, tehee, chortler, chuckler, crackup, crack-up
3 Syllables
enthusiasms, merriment, enthusiasm, mirthfulness, recreation, joyfulness, levities, levity, comedies, recreations, cheerfulness, ravishment, comedy, jollities, happiness, jauntiness, jollity, guffawing, har-de-har, zealousness, merriness, cheeriness
4 Syllables
cachinnation, alacrity, facetiousness, jocoseness, entertainment, celebrations, amusement, celebration, merry-making, festivities, joviality, enlivenment, festivity, jocundity
5 Syllables
divertissement, jocularity, galvanization, vitalization, exhilaration, solemnization