foiled vs discomfited

foiled is not a noun while discomfited is a noun.

Word	Noun	Adjective	Verb	Adverb
foiled	No	Yes	No	No
discomfited	Yes	Yes	No	No

As adjectives, foiled and discomfited are synonyms defined as:

Other synonyms of foiled include defeated, disappointed, frustrated, thwarted.

foiled (noun)	discomfited (noun)
	people who are defeated

foiled (adjective)	discomfited (adjective)
disappointingly unsuccessful	disappointingly unsuccessful