Question

egomaniac He's a completely unimpressive person, but that doesn't keep him from being an egomaniac. ˌigoʊˈmeɪniæk

Accepted Answer

Someone who is extremely self-centered and ignores the problems and concerns of others. Ego is Latin for “I,” and in English ego usually means “sense of self-worth.” Most people's egos stay at a healthy level, but some become exaggerated. Egomaniacs may display a grandiose sense of self-importance, with fantasies about their own brilliance or beauty, intense envy of others, a lack of sympathy, and a need to be adored or feared. But, like megalomaniac, the word egomaniac is thrown around by lots of people who don't mean much more by it than blowhard or know-it-all.

word	egomaniac
definition	Someone who is extremely self-centered and ignores the problems and concerns of others.
eg_sentence	He's a completely unimpressive person, but that doesn't keep him from being an egomaniac.
explanation	Ego is Latin for “I,” and in English ego usually means “sense of self-worth.” Most people's egos stay at a healthy level, but some become exaggerated. Egomaniacs may display a grandiose sense of self-importance, with fantasies about their own brilliance or beauty, intense envy of others, a lack of sympathy, and a need to be adored or feared. But, like megalomaniac, the word egomaniac is thrown around by lots of people who don't mean much more by it than blowhard or know-it-all.
IPA	ˌigoʊˈmeɪniæk

Egomaniac Ego Extremely Self Centered Ignores Problems Concerns Completely