red-faced vs reddened

red-faced and reddened both are adjectives.

Word	Noun	Adjective	Verb	Adverb
red-faced	No	Yes	No	No
reddened	No	Yes	No	No

As adjectives, red-faced and reddened are synonyms defined as:

red-faced and reddened: (especially of the face) reddened or suffused with or as if with blood from emotion or exertion

Other synonyms of red-faced include crimson, flushed, red.

red-faced (adjective)	reddened (adjective)
(especially of the face) reddened or suffused with or as if with blood from emotion or exertion	(especially of the face) reddened or suffused with or as if with blood from emotion or exertion
having a red face from embarrassment or shame or agitation or emotional upset	lighted with red light as if with flames