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Synonyms

arbitrarily

American  
[ahr-bi-trair-uh-lee] / ˌɑr bɪˈtrɛər ə li /

adverb

  1. based on the judgment or will of an individual.

    The Fourth Amendment protects my right to not be arbitrarily searched.

  2. without an apparent reason or pattern; randomly; capriciously.

    There is no need to stop living life to its fullest simply because we have reached some arbitrarily set age for what broader society calls “retirement.”


Other Word Forms

Etymology

Origin of arbitrarily

arbitrary ( def. ) + -ly

Explanation

Something said or done arbitrarily is done randomly or without much thought — like when you arbitrarily eat whatever happens to be on the buffet table at your cousin's wedding. The adverb arbitrarily describes something that's done haphazardly, based on random chance or on your own whim of the moment. If you go to a movie and know nothing about anything that's playing, you might arbitrarily choose one — based on the titles, the look of the posters, or on nothing at all. When there's not much reason behind your actions, they're done arbitrarily.

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Vocabulary lists containing arbitrarily

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.

See Examples For:

Classes are now arbitrarily ranked by income, power and social connections.

From The Wall Street Journal Aug. 30, 2026

It’s important to know what the fees and investment options are within your retirement accounts, and anyone thinking of consolidating accounts should look at those factors before arbitrarily rolling anything over.

From MarketWatch Aug. 26, 2026

He said the board doesn’t act arbitrarily or use personal taste.

From Los Angeles Times Aug. 5, 2026

I’ve read criticisms of the Doomsday Clock, that it’s gimmicky, like it’s arbitrarily trying to measure something that can’t be defined so easily.

From Salon Jun. 15, 2026

More or less reflexively, he dropped into his equations something called the cosmological constant, which arbitrarily counterbalanced the effects of gravity, serving as a kind of mathematical pause button.

From "A Short History of Nearly Everything" by Bill Bryson

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