Webster's Revised Unabridged Dictionary · 1913

Selfish

Selfish , adjective

1.
Caring supremely or unduly for one's self; regarding one's own comfort, advantage, etc., in disregard, or at the expense, of those of others.
They judge of things according to their own private appetites and selfish passions. — Cudworth
In that throng of selfish hearts untrue. — Keble
2.
(Ethics) Believing or teaching that the chief motives of human action are derived from love of self.
Hobbes and the selfish school of philosophers. — Fleming