Tending to talk excessively about oneself. / Believing oneself to be better and more important than others. / (nonstandard, by confusion of the similar words) Egoistical (advocating egoism).

A person who talks excessively about themself. / A person who believes in his or her own importance or superiority. / (nonstandard, by confusion of the similar words) An egoist (advocate of egoism).

An advocate of egoism. / An egocentric or self-centered person. / (nonstandard, by confusion of the similar words) An egotist (person who talks excessively about themself).

selfish, self-centered / Egotistical.

A person who is egocentric.

The constant following of one's egotistical desires to an extreme.

plural of egoist

in an egocentric manner

in an egoistic manner

The quality of being egocentric.