contrariwise vs to the contrary

contrariwise and to the contrary both are adverbs.

Word	Noun	Adjective	Verb	Adverb
contrariwise	No	No	No	Yes
to the contrary	No	No	No	Yes

As adverbs, contrariwise and to the contrary are synonyms defined as:

Other synonyms of contrariwise include contrarily, on the contrary.

contrariwise (adverb)	to the contrary (adverb)
contrary to expectations	contrary to expectations
with the order reversed
in a contrary disobedient manner