egotistic vs self-serving

egotistic and self-serving both are adjectives.

Word	Noun	Adjective	Verb	Adverb
egotistic	No	Yes	No	No
self-serving	No	Yes	No	No

egotistic (adjective)	self-serving (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