individualistic vs individualist

individualistic is not a noun while individualist is a noun.

Word	Noun	Adjective	Verb	Adverb
individualistic	No	Yes	No	No
individualist	Yes	Yes	No	No

As adjectives, individualistic and individualist are synonyms defined as:

individualistic and individualist: marked by or expressing individuality

individualistic (noun)	individualist (noun)
	a person who pursues independent thought or action

individualistic (adjective)	individualist (adjective)
with minimally restricted freedom in commerce	marked by or expressing individuality
marked by or expressing individuality