folly, triviality, silliness, fluff, flippancy, funniness, buffoonery, joke, japery, important, giddiness, flummery, comedy, frippery, nonsense, small change, lightness, clowning, antic, puerility, bar billiards, harlequinade, frivolousness, prank, fiddle-faddle, trifling, froth, put-on, surface, small potatoes, drollery, trick, bagatelle, trifle, caper
amusement (part of speech: noun)
hilarity, pastime, sport, recreation, tonic, game, divertissement, levity, relaxation, amusement, stimulation, humor, merriment, hobby, distraction, play, entertainment, refreshment, jolliness, fun, jocularity, whimsicality, diversion, celebration, pleasure
unimportance (part of speech: noun)
- And here, under the influence of the unaccustomed wine, he became a prey to frivolity, seated himself in the rocking- chair, and tickled the snarling monkey. - "The Song of Songs", Hermann Sudermann.
- 129. Dark- veiled Cotytto was a Thracian goddess, whose worship was connected with licentious frivolity. - "Minor Poems by Milton", John Milton.
- From the depths of tenderness she passed to the shallows of frivolity. - "The Black Robe", Wilkie Collins.