adversarial

adjective
ad·​ver·​sar·​i·​al | \ ˌad-vər-ˈser-ē-əl How to pronounce adversarial (audio) , ˌad-və-, -ˈse-rē- \

Definition of adversarial

: involving two people or two sides who oppose each other : of, relating to, or characteristic of an adversary or adversary procedures (see adversary entry 2 sense 2) an adversarial relationship an adversarial system of justice with prosecution and defense opposing each other

Keep scrolling for more

Examples of adversarial in a Sentence

an adversarial system of justice with prosecution and defense opposing each other the relationship between the president and the congress should not be adversarial if anything is to get done
Recent Examples on the Web The 24-hour rule is at the center of a system hamstrung by arcane and needlessly adversarial legal requirements that cast people with mental illnesses as criminals, and doctors as their captors. Meg Kissinger, jsonline.com, 31 Aug. 2021 Some White House officials believed Netanyahu would resume his adversarial stance with Biden. Kevin Liptak, CNN, 27 Aug. 2021 And the fragile cooperation between U.S. and Taliban commanders is already fraying, and the two could easily revert to their adversarial stances. Compiled Democrat-gazette Staff From Wire Reports, Arkansas Online, 27 Aug. 2021 Former Oakland police Chief Howard Jordan, who presided over the department from 2011 to 2013, during one of the most adversarial periods of the settlement, has his doubts. Rachel Swan, San Francisco Chronicle, 26 Aug. 2021 With so many losses caused by the pandemic, U.S. litigants have a powerful incentive to bring cases, prosecute them aggressively, and test liability through adversarial presentation. Mike Pompeo And David B. Rivkin Jr., WSJ, 26 Aug. 2021 And the fragile cooperation between US and Taliban commanders is already fraying, and the two could easily revert to their adversarial stances. BostonGlobe.com, 25 Aug. 2021 The commitment process had become as adversarial as a murder trial. Meg Kissinger, Milwaukee Journal Sentinel, 11 Aug. 2021 Others have turned to unauthorized and adversarial data collection, scraping data from sites such as Gab and Parler to understand the spread of misinformation and disinformation on sites actively hostile toward researchers studying those topics. Ethan Zuckerman, The Atlantic, 6 Aug. 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'adversarial.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of adversarial

1839, in the meaning defined above

History and Etymology for adversarial

adversary entry 1 + -al entry 1

Keep scrolling for more

Learn More About adversarial

Time Traveler for adversarial

Time Traveler

The first known use of adversarial was in 1839

See more words from the same year

Dictionary Entries Near adversarial

adversaria

adversarial

adversary

See More Nearby Entries 

Statistics for adversarial

Last Updated

13 Sep 2021

Cite this Entry

“Adversarial.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/adversarial. Accessed 19 Sep. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

Keep scrolling for more

More Definitions for adversarial

adversarial

adjective

English Language Learners Definition of adversarial

: involving two people or two sides who oppose each other

adversarial

adjective
ad·​ver·​sar·​i·​al | \ ˌad-vər-ˈser-ē-əl How to pronounce adversarial (audio) \

Legal Definition of adversarial

: of, relating to, or characteristic of an adversary or adversary procedures : adversary

More from Merriam-Webster on adversarial

Nglish: Translation of adversarial for Spanish Speakers

Britannica English: Translation of adversarial for Arabic Speakers

WORD OF THE DAY

Test Your Vocabulary

Dog Words Quiz

  • shiba puppy more or less demanding cuddles
  • Which of the following animals has a dog in its etymology?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
Universal Daily Crossword

A daily challenge for crossword fanatics.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!