egoism

Nouns

(n) (ethics) the theory that the pursuit of your own welfare in the basis of morality
(n) concern for your own interests and welfare egocentrism, self-centeredness, self-concern, self-interest,

Synonyms

egocentrism self-centeredness self-concern self-interest

Antonyms

altruism selflessness

Words of close approximity

egoist

egoist