Main Entry: friv·o·lous

Pronunciation: \ˈfri-və-ləs\

Function: adjective

Etymology: Middle English, from Latin frivolus

Date: 15th century

1 a : of little weight or importance b : having no sound basis (as in fact or law) <a frivolous lawsuit>
2 a : lacking in seriousness b : marked by unbecoming levity

— friv·o·lous·ly adverb

— friv·o·lous·ness noun