/fri vol"i tee/ , n. , pl. frivolities for 2.
1. the quality or state of being frivolous: the frivolity of Mardi Gras.
2. a frivolous act or thing: It was a frivolity he had a hard time living down.
[ 1790-1800; frivolité. See FRIVOLOUS, -ITY ]
Syn. 1. self-indulgence, irresponsibility, triviality, abandon, levity, foolishness.