racist vs discriminatory

racist is a noun but discriminatory is not a noun.

Word	Noun	Adjective	Verb	Adverb
racist	Yes	Yes	No	No
discriminatory	No	Yes	No	No

racist (noun)	discriminatory (noun)
a person with a prejudiced belief that one racial group is superior to others

racist (adjective)	discriminatory (adjective)
discriminatory especially on the basis of race or religion	being biased or having a belief or attitude formed beforehand
based on racial intolerance	manifesting partiality
	capable of making fine distinctions
	containing or implying a slight or showing prejudice