solely vs exclusively

solely and exclusively both are adverbs.

Word	Noun	Adjective	Verb	Adverb
solely	No	No	No	Yes
exclusively	No	No	No	Yes

As adverbs, solely and exclusively are synonyms defined as:

Other synonyms of solely include alone, entirely, only.

solely (adverb)	exclusively (adverb)
without any others being included or involved	without any others being included or involved