The meaning of ADVERSARIAL is involving two people or two sides who oppose each other : of, relating to, or characteristic of an adversary or adversary procedures.

Opposing & against (Definition of adversarial from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

ADVERSARIAL definition: pertaining to or characterized by antagonism and conflict See examples of adversarial used in a sentence.

(especially of political or legal systems) involving people who are in opposition and who argue against each other. Definition of adversarial adjective in Oxford Advanced Learner's Dictionary. Meaning, …

Relating to or characteristic of an adversary; involving antagonistic elements: "Some speakers fall almost willingly into an adversarial relationship with the audience" (Don Pfarrer).

adversarial, adj. meanings, etymology, pronunciation and more in the Oxford English Dictionary

Aug 4, 2025 · adversarial (comparative more adversarial, superlative most adversarial) Characteristic of, or in the manner of, an adversary; combative, hostile, opposed. quotations

If you describe something as adversarial, you mean that it involves two or more people or organizations who are opposing each other.

Adversarial definition: Relating to or characteristic of an adversary; involving antagonistic elements.

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."