ego

1 a reasonable or justifiable sense of one's worth or importance I have enough ego not to want to give up easily in any contest or competition Synonyms pride, pridefulness, self-esteem, self-regard, self-respectRelated Words aplomb, assurance, confidence, self-assurance, self-assuredness, self-confidence, self-pride, self-trust, self-worth; dignity, face, honor, prestigeNear Antonyms discredit, disesteem, disgrace, dishonor, disrepute, humiliation, ignominy, infamy, obloquy, odium, opprobrium, shame; demureness, down-to-earthness, humbleness, humility, modesty; diffidence, meekness, shyness, timidity, timidness

2 an often unjustified feeling of being pleased with oneself or with one's situation or achievements a star athlete with a refreshing lack of ego Synonyms amour propre, bighead, complacency, conceit, conceitedness, complacence, egotism, pomposity, pompousness, pride, pridefulness, self-admiration, self-assumption, self-conceit, self-congratulation, self-esteem, self-glory, self-importance, self-love, self-opinion, self-satisfaction, smugness, swelled head, swellheadedness, vaingloriousness, vainglory, vainness, vanityRelated Words assurance, confidence, self-assurance, self-confidence; self-righteousness; arrogance, disdainfulness, haughtiness, imperiousness, lordliness, self-assertion, snobbishness, superciliousness, superiority; hubris, overconfidence, presumption; pretense (or pretence), pretension, pretentiousness; egoism, self-centeredness, selfishness; self-pride, self-respectNear Antonyms diffidence, self-doubt; self-disgust, self-hate, self-loathing; altruism, unselfishness; bashfulness, demureness, shyness, timidity, timidness; passiveness, passivityAntonyms humbleness, humility, modesty