frivolous

friv-o-lous / frĭv-ə-ləs

adjective

1. not serious; silly; foolish

One who is serious all day will never have a good time, while one who is frivolous all day will never establish a household.

Ptahhotpe, c. 25^th - 24th century B.C.

2. of little weight or importance; trivial

It is an endless and frivolous pursuit to act by any other rule than the care of satisfying our own minds in what we do.

Richard Steele, 1672 - 1729