frivolity (n.)
- amusement
- asininity
- buffoonery
- crankiness
- craziness
- eccentricity
- emptiness
- fatuity
- fatuousness
- flightiness
- flimsiness
- flippancy
- flirting
- folly
- foolery
- foolishness
- frivolousness
- fun
- futility
- game
- giddiness
- glee
- gleefulness
- hilarity
- idiocy
- idleness
- imbecility
- inanity
- ineptitude
- insanity
- jest
- jocularity
- jocundity
- jolliness
- jollity
- joviality
- joy
- joyfulness
- joyousness
- laughter
- levity
- lightness
- lunacy
- madness
- merriment
- merriness
- mindlessness
- mirth
- mirthfulness
- play
- playfulness
- prankishness
- queerness
- roguishness
- senselessness
- shallowness
- silliness
- slenderness
- slightness
- sport
- sportiveness
- stupidity
- superficiality
- thoughtlessness
- toying
- trickery
- trickiness
- trifling
- triteness
- triviality
- vacuity
- vanity
- vapidity
- volatility
- waggery
- waggishness
- weirdness
