egoist

Definitions of egoist
1

n a conceited and self-centered person

Synonyms:
egotist, swellhead
Types:
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blowhard, boaster, braggart, bragger, line-shooter, vaunter
a very boastful and talkative person
egomaniac
an abnormally egotistical person
exhibitionist, show-off
someone who deliberately behaves in such a way as to attract attention
know-all, know-it-all
someone who thinks he knows everything and refuses to accept advice or information from others
megalomaniac
a pathological egotist
miles gloriosus
a braggart soldier (a stock figure in comedy)
popinjay
a vain and talkative person (chatters like a parrot)
grandstander
someone who performs with an eye to the applause from spectators in the grandstand
hot dog, hotdog
someone who performs dangerous stunts to attract attention to himself
poser, poseur
a person who habitually pretends to be something he is not
Type of:
disagreeable person, unpleasant person
a person who is not pleasant or agreeable

n a self-centered person with little regard for others

Synonyms:
egocentric
Type of:
selfish person
a person who is unusually selfish

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