Definition of adversarily in English:

adversarily

adverb

rare
  • In an adversarial manner; (originally) hostilely, confrontationally; (subsequently also) by or according to the adversarial system.

Origin

Late 15th century; earliest use found in The Boke of Noblesse. From adversary + -ly.

Pronunciation:

adversarily

/ˌadvəˈsɛrɪli/