discrepant vs discrepancy

discrepant is not a noun while discrepancy is a noun.

Word	Noun	Adjective	Verb	Adverb
discrepant	No	Yes	No	No
discrepancy	Yes	No	No	No

discrepant (noun)	discrepancy (noun)
	a difference between conflicting facts or claims or opinions
	an event that departs from expectations

discrepant (adjective)	discrepancy (adjective)
not in accord
not in agreement
not compatible with other facts