Frivolous
/frˈɪvələs/
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Definition
(adj) Silly, especially at an inappropriate time or in an inappropriate manner; lacking a good reason for being, or for doing what one does; due to or moved by a whim or caprice.
Sentence Examples
The lawsuit was dismissed as frivolous.
Stop wasting time on frivolous activities.
CEFR Practice Quiz
The judge dismissed the ____ lawsuit, stating that it lacked any serious legal basis or merit.