Selfish \Self"ish\, a.

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.

Source: Webster's Revised Unabridged Dictionary (1913)