In its most basic, and oldest, uses, frivolous simply describes things of little importance. You can refer to anything you don't find worthwhile—from silly products to outrageous forms of …

A frivolous claim is not based on fact or good reasons, or relates to something that is not at all important, so that it is obviously not likely to succeed or not worth taking to court:

FRIVOLOUS definition: characterized by lack of seriousness or sense. See examples of frivolous used in a sentence.

Definition of frivolous adjective from the Oxford Advanced Learner's Dictionary. (of people or their behaviour) silly or funny, especially when such behaviour is not suitable. Sorry, I was being …

1. not serious or sensible in content, attitude, or behaviour; silly: a frivolous remark. 2. unworthy of serious or sensible treatment; unimportant: frivolous details.

Dec 14, 2025 · frivolous (comparative more frivolous, superlative most frivolous) Silly, especially at an inappropriate time or in an inappropriate manner; lacking a good reason for being, or for …

characterized by lack of seriousness or sense: frivolous conduct. self-indulgently carefree; unconcerned about or lacking any serious purpose. (of a person) given to trifling or undue …

Frivolous things are silly or unnecessary. If something is frivolous, then you don't need it. Frivolous things are goofy, useless, or just plain dumb. The word is often used to describe …

If you describe someone as frivolous, you mean they behave in a silly or light-hearted way, rather than being serious and sensible. I just decided I was a bit too frivolous to be a doctor.

FRIVOLOUS meaning: 1 : not important not deserving serious attention; 2 : silly and not serious