businessperson vs capitalist

businessperson and capitalist both are nouns.

Word	Noun	Adjective	Verb	Adverb
businessperson	Yes	No	No	No
capitalist	Yes	Yes	No	No

As nouns, capitalist is a hypernym of businessperson; that is, capitalist is a word with a broader meaning than businessperson:

businessperson: a capitalist who engages in industrial commercial enterprise
capitalist: a person who invests capital in a business (especially a large business)

businessperson (noun)	capitalist (noun)
a capitalist who engages in industrial commercial enterprise	a person who invests capital in a business (especially a large business)
	a conservative advocate of capitalism

businessperson (adjective)	capitalist (adjective)
	favoring or practicing capitalism
	of or relating to capitalism or capitalists