arbitrarily
Americanadverb
-
based on the judgment or will of an individual.
The Fourth Amendment protects my right to not be arbitrarily searched.
-
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
Derived Forms
Etymology
Origin of arbitrarily
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.
Vocabulary lists containing arbitrarily
Lincoln Inaugural Address (March 1861)
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The Freedom of Information Act (2016)
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The Martian
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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.
"You're able to do two things that are normally not compatible with one another: Use entanglement to build an exquisitely sensitive sensor but also have robustness to arbitrarily large amounts of noise," Clerk said.
From Science Daily • Jun. 6, 2026
Rivera had been arbitrarily detained when he returned to his home in Nicaragua in September 2023.
From BBC • May 31, 2026
“For nearly a century, the United States Postal Service has arbitrarily blocked handguns from being mailed.”
From Los Angeles Times • May 7, 2026
The firm said other major platforms such as Microsoft, Snapchat and OpenAI had been arbitrarily excluded.
From Barron's • Apr. 28, 2026
Happily he let out that for years organic chemists had been arbitrarily favoring particular tautomeric forms over their alternatives on only the flimsiest of grounds.
From "Double Helix" by James D. Watson
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
