manifestly vs obviously

manifestly and obviously both are adverbs.

Word	Noun	Adjective	Verb	Adverb
manifestly	No	No	No	Yes
obviously	No	No	No	Yes

As adverbs, manifestly and obviously are synonyms defined as:

manifestly and obviously: unmistakably (`plain' is often used informally for `plainly')

Other synonyms of manifestly include apparently, evidently, patently, plain, plainly.

manifestly (adverb)	obviously (adverb)
unmistakably (`plain' is often used informally for `plainly')	unmistakably (`plain' is often used informally for `plainly')