1. perversely, contrarily, contrariwise

usage: in a contrary disobedient manner

2. vice versa, the other way around, contrariwise

usage: with the order reversed; "she hates him and vice versa"

3. contrarily, to the contrary, contrariwise, on the contrary

usage: contrary to expectations; "he didn't stay home; on the contrary, he went out with his friends"

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See also: contrariwise (Dictionary)