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Synonyms

frivolous

American  
[friv-uh-luhs] / ˈfrɪv ə ləs /

adjective

  1. characterized by lack of seriousness or sense.

    frivolous conduct.

  2. self-indulgently carefree; unconcerned about or lacking any serious purpose.

  3. (of a person) given to trifling or undue levity.

    a frivolous, empty-headed person.

    Synonyms:
    puerile, childish, foolish, silly, idle
    Antonyms:
    serious
  4. of little or no weight, worth, or importance; not worthy of serious notice.

    a frivolous suggestion.

    Synonyms:
    flimsy, trivial, paltry, petty, trifling, light
    Antonyms:
    weighty

frivolous British  
/ ˈfrɪvələs, frɪˈvɒlɪtɪ /

adjective

  1. not serious or sensible in content, attitude, or behaviour; silly

    a frivolous remark

  2. unworthy of serious or sensible treatment; unimportant

    frivolous details

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of frivolous

First recorded in 1425–75; late Middle English, from Latin frīvolus “worthless, trifling”; see -ous

Explanation

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 lawsuits. A frivolous lawsuit has no value and will be a waste of the court's time. If someone is frivolous, that person shouldn't be taken seriously because he's always fooling around and never gets anything done. Frivolous is pretty much the opposite of essential.

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Vocabulary lists containing frivolous

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

They take our data, our time and our attention, and then turn around and monetize it, selling it for profit to ensure that we continue to fund their wives’ frivolous trips into space.

From Salon • May 22, 2026

Legal experts deemed the suit frivolous, and Colbert referred to the settlement as a “big fat bribe.”

From Los Angeles Times • May 20, 2026

These products often look frivolous from the outside, but they sit inside a broader ecosystem of monetizable attachment.

From Barron's • Apr. 11, 2026

The process also helps reduce lawsuits, frivolous or otherwise, which can negatively impact IPO proceeds, according to a 2020 study.

From MarketWatch • Apr. 1, 2026

With the economy in rough shape, Barack’s team was constantly guarding against any image coming out of the White House that might be seen as frivolous or light, given the somberness of the times.

From "Becoming" by Michelle Obama

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