manifestly vs plainly

manifestly and plainly both are adverbs.

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

As adverbs, manifestly and plainly are synonyms defined as:

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

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

manifestly (adverb)	plainly (adverb)
unmistakably (`plain' is often used informally for `plainly')	unmistakably (`plain' is often used informally for `plainly')
	in a simple manner; without extravagance or embellishment