IPA: /kənˈtrɛrɪˌwaɪz/
KK: /kɒnˈtrɛrɪˌwaɪz/
In a way that shows a different or opposite point of view.
He thought the plan would succeed; contrariwise, she believed it would fail.
Contrariwise → It is formed from "contra-" (meaning against) and "-wise" (meaning in the manner of). The word "contrariwise" means in a manner that is contrary or opposite to what has been stated.
Think of 'against' ('contra-') and 'in the manner of' ('-wise') to remember that 'contrariwise' means in a manner that is opposite.
No commonly confused words.