egoism
UK: ˈiːɡəʊɪzəm | US: ˈiːɡoʊɪzəm
n. 1. The ethical theory that self-interest is the foundation of morality.
n. 2. Excessive concern for oneself; selfishness.
The word "egoism" traces back to Latin ego (meaning "I" or "self"), combined with the Greek-derived suffix -ism, which denotes a philosophical doctrine or practice. The term emerged in the 18th century to describe philosophies prioritizing self-interest, later extending to critique excessive self-focus. The morphemes reflect a clear duality: ego anchors the concept in individuality, while -ism frames it as a systematic belief.
His egoism made it difficult for him to consider others' needs.
Philosophical egoism argues that rational agents act in their own best interest.
Critics accused the politician of egoism for ignoring public welfare.
Psychological egoism suggests all human actions are motivated by self-benefit.
Her egoism blinded her to the team's collective goals.