adversarial
adjective
ad·ver·sar·i·al
ˌad-vər-ˈser-ē-əl 
ˌad-və-,
-ˈse-rē-
: 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
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
At the core of his strategy is AI security, which involves developing robust defense mechanisms against cyber threats such as model poisoning, adversarial attacks, and data breaches.
—
Jason Phillips, USA Today, 7 May 2025
In our adversarial legal system, due process and separation of powers require that judges rely on lawyers willing to challenge the government to assess whether there have been constitutional violations.
—Matt Robison, MSNBC Newsweek, 1 May 2025
What if adversarial data became part of a learning model?
—Christian Espinosa, Forbes.com, 30 Apr. 2025
Even the darkness of the risers on the stage gives this, like, adversarial sense.
—Sarah Shachat, IndieWire, 26 Apr. 2025
See All Example Sentences for adversarial
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Jason Phillips, USA Today, 7 May 2025
In our adversarial legal system, due process and separation of powers require that judges rely on lawyers willing to challenge the government to assess whether there have been constitutional violations.
—Matt Robison, MSNBC Newsweek, 1 May 2025
What if adversarial data became part of a learning model?
—Christian Espinosa, Forbes.com, 30 Apr. 2025
Even the darkness of the risers on the stage gives this, like, adversarial sense.
—Sarah Shachat, IndieWire, 26 Apr. 2025
See All Example Sentences for adversarial
Cite this Entry
“Adversarial.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/adversarial. Accessed 17 May. 2025.
Copy CitationLegal Definition
adversarial
adjective
ad·ver·sar·i·al
ˌad-vər-ˈser-ē-əl
: of, relating to, or characteristic of an adversary or adversary procedures : adversary
Love words? Need even more definitions?
Merriam-Webster unabridged
Share