egotism
egoism
[noun]
Synonyms: self-centredness, conceitedness, narcissism, self-absorption, self-esteem, self-importance, self-interest, selfishness, vanity

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Antonyms: altruism, humility
Contrasted words: humility, lowliness, bashfulness, diffidence, shyness, modesty, humbleness, self-effacement
Related Words: conceit, conceitedness, narcissism, self-esteem, self-love, vainness, boastfulness, boasting, bragging, gasconade, gasconism, megalomania, vaunting, arrogance, superiority, contempt

[TahlilGaran] English Synonym Dictionary ▲

e‧go‧tis‧m /ˈiːɡətɪzəm, ˈeɡ-/ noun [uncountable]
the belief that you are much better or more important than other people

[TahlilGaran] Dictionary of Contemporary English ▲