DictionarycontrariwiseIn the opposite way
adverb

contrariwise

kun-TRAIR-ee-wize/kənˈtreriwaɪz/

In the opposite way or from the opposite point of view.

One toy cart rolls left; the other travels contrariwise, toward the right.

Two simple wind-up toy carts travel in opposite directions, with one clear arrow over each; opposite way rather than collision.
Etymology

“Opposite” joined to “way” gives “in the opposite manner.” Applied to an argument rather than an action, the same combination introduces the other side of a contrast: “on the other hand.”

More examples

  • The two gears turn contrariwise.
  • The same evidence can be read contrariwise.
  • He expects prices to rise; I argue contrariwise.

Forms

contrary adjective — Opposite in nature, direction, or opinion.

Similar words

oppositely
Emphasizes reversed direction or manner rather than contrasting viewpoints.
conversely
Introduces a contrasting statement or reverses an earlier relationship.