egoism
e-go-ism
noun
Excessive self-interest or selfishness, often disregarding the needs and feelings of others.
"Her pure egoism made her unpopular with colleagues."
noun
The ethical theory that one's self-interest is the foundation of all moral behaviour.
"Ethical egoism is a controversial philosophical stance."
Thesaurus
Synonyms: egocentrism, self-interest, self-centeredness, self-concern
Antonyms: altruism, selflessness