Egoism

/ˈiːɡoʊɪzəm/

Meaning & Definition

noun
The belief that one's own interests and well-being are of utmost importance; self-interest.
His egoism often led him to overlook the needs of others in favor of his own.
An ethical theory that treats self-interest as the foundation of morality.
Egoism posits that actions are morally right if they promote one's own good.
A tendency to be self-centered or self-serving.
Her constant focus on her own achievements highlighted her egoism, making teamwork difficult.

Etymology

From Latin 'ego', meaning 'I' + '-ism', a suffix indicating a doctrine or theory.

Common Phrases and Expressions

egoistic behavior
Actions predominantly motivated by self-interest.
ego trip
A situation where someone is overly focused on themselves or their achievements.
narcissistic egoism
A combination of egocentric views with an excessive need for admiration.

Related Words

altruism
The belief in or practice of selfless concern for the well-being of others.
selfishness
The quality of being concerned excessively or exclusively with oneself.
narcissism
Excessive interest in or admiration of oneself and one's physical appearance.

Slang Meanings

Ego boost
Winning that award was a real ego boost for her.
Me-first attitude
His me-first attitude often alienates his friends.