FRIVOLOUS

frivolous

(adjective) not serious in content or attitude or behavior; “a frivolous novel”; “a frivolous remark”; “a frivolous young woman”

Source: WordNet® 3.1

Etymology

Adjective

frivolous (comparative more frivolous, superlative most frivolous)

Silly, especially at an inappropriate time or in an inappropriate manner.

Of little weight or importance; not worth notice; slight.

(law, said of a lawsuit) Having no reasonable prospect of success because its claim is without merit, lacking a supporting legal or factual basis, while the filing party is, or should be, aware of this.

Source: Wiktionary

Friv"o*lous, a. Etym: [L. frivolus; prob. akin to friare to rub, crumble, E. friable: cf. F. frivole.]

1. Of little weight or importance; not worth notice; slight; as, a frivolous argument. Swift.

2. Given to trifling; marked with unbecoming levity; silly; interested especially in trifling matters. His personal tastes were low and frivolous. Macaulay.

Syn.

– Trifling; trivial; slight; petty; worthless.

– Friv"o*lous*ly, adv.

– Friv"o*lous*ness, n.

Source: Webster’s Unabridged Dictionary 1913 Edition