frivolous Meaning, Definition & Usage

  1. adjective not serious in content or attitude or behavior
    • a frivolous novel
    • a frivolous remark
    • a frivolous young woman

WordNet

Friv"o*lous adjective
Etymology
L. frivolus; prob. akin to friare to rub, crumble, E. friable: cf. F. frivole.
Definitions
  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.

Webster 1913