As an adjective frivolous
is silly, especially at an inappropriate time or in an inappropriate manner.
As a noun frippet is
a frivolous young woman.
Silly, especially at an inappropriate time or in an inappropriate manner.
Of little weight or importance; not worth notice; slight.
In litigation, a lawsuit filed by a party who is aware the claim is without merit and has no reasonable prospect of success because of a lack of supporting legal or factual basis.
- One of the major cost drivers in the delivery of health care are these junk and frivolous lawsuits.
A frivolous young woman.