adversarial
Britishadjective
-
pertaining to or characterized by antagonism and conflict
-
US term: adversary. having or involving opposing parties or interests in a legal contest
Explanation
Anything that's adversarial is full of intense disagreement and conflict. If you had an adversarial relationship with your sister, it would be extremely difficult to share a bedroom with her. Adversarial exchanges between countries don't bode well — they often lead to more intense conflicts, or possibly even war. Being adversarial means that each side is antagonistic, sharply opposed to the other, or locked into a deeply divided rivalry. In fact, this adjective is sometimes used simply to mean "hostile." Your adversary is your enemy or competitor, and both words stem from the Latin adversus, "turned against."
Vocabulary lists containing adversarial
ACT Reading Test: Words to Capture Tone, List 1
Looking to grow your vocabulary? Check out this interactive, curated word list from our team of English language specialists at Vocabulary.com – one of over 17,000 lists we've built to help learners worldwide!
Tone and Point of View, List 1
Interested in learning more words like this one? Our team at Vocabulary.com has got you covered! You can review flashcards, quiz yourself, practice spelling, and more – and it's all completely free to use!
Words to Capture Tone, List 1
Want to remember this word for good? Start your learning journey today with our library of interactive, themed word lists built by the experts at Vocabulary.com – we'll help you make the most of your study time!
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.
Yaroch said he had been “spinning out of control,” suggesting he had taken the money because he was “frustrated that the FBI could not or would not act against adversarial cryptocurrency accounts,” the affidavit said.
From The Wall Street Journal ● Aug. 3, 2026
More likely, as Salon’s Amanda Marcotte has brilliantly observed, Trump actively seeks out these adversarial environments.
From Salon ● Jun. 11, 2026
Planet initially said its original 14-day delay policy was "to ensure our imagery is not tactically leveraged by adversarial actors to target allied and Nato-partner personnel and civilians".
From BBC ● Apr. 11, 2026
Rival U.S. firms are sharing information to detect so-called adversarial distillation attempts that violate their terms of service.
From Los Angeles Times ● Apr. 10, 2026
Defendants who are deemed incompetent can’t be tried in adversarial criminal proceedings—meaning that the State can't prosecute them unless they become well enough to defend themselves.
From "Just Mercy" by Bryan Stevenson
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.
