egotistical vs self-seeking

egotistical is not a noun while self-seeking is a noun.

Word	Noun	Adjective	Verb	Adverb
egotistical	No	Yes	No	No
self-seeking	Yes	Yes	No	No

egotistical (noun)	self-seeking (noun)
	taking advantage of opportunities without regard for the consequences for others

egotistical (adjective)	self-seeking (adjective)
characteristic of false pride; having an exaggerated sense of self-importance	concerned chiefly or only with yourself and your advantage to the exclusion of others
characteristic of those having an inflated idea of their own importance