Simple Definition of frivolous
: not important : not deserving serious attention
: silly and not serious
Examples of frivolous
She knew that people might think her frivolous, Kitty said, to talk to some saint when she had a cooking disaster, but that was what she really believed the saints were there for. —Alice Munro, New Yorker, 8 Oct. 2001
As the Explorer quickly became the most popular SUV of all time … a number of lawsuits concerning the Firestone tires were filed, the first in 1992. But Ford and Firestone, like most companies in today's … society, tend to assume that the bulk of legal actions are frivolous. —Daniel Eisenberg, Time, 11 Sept. 2000
There is no frivolous decoration, no canned music, nothing but the essentials—well-worn cutlery and table linen, unpretentious glasses. —Peter Mayle, GQ, May 1998
She thinks window shopping is a frivolous activity.
<judges are getting sick of people bringing frivolous lawsuits>
Origin of frivolous
Middle English, from Latin frivolus
First Known Use: 15th century
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