noun
- a self-centered or selfish person (opposed to altruist).
- an arrogantly conceited person; egotist.
- an adherent of the metaphysical principle of the ego, or self; solipsist.
noun
- a person who is preoccupied with his own interests; a selfish person
- a conceited person; egotist
- ethics a person who lives by the values of egoism
1785, in metaphysics, “one who maintains there is no evidence of the existence of anything but the self” (taking ego in a sense of “thinking subject”), from French égoiste (1755); see ego + -ist. Meaning “selfish person” is from 1879. Related: Egoistic; egoistical.