emphatically vs definitely

emphatically and definitely both are adverbs.

Word	Noun	Adjective	Verb	Adverb
emphatically	No	No	No	Yes
definitely	No	No	No	Yes

As adverbs, emphatically and definitely are synonyms defined as:

Other synonyms of emphatically include by all odds, decidedly, in spades, unquestionably.

emphatically (adverb)	definitely (adverb)
without question and beyond doubt	without question and beyond doubt