From WordNet (r) 3.0 (2006) [wn]:
selfish
adj 1: concerned chiefly or only with yourself and your
advantage to the exclusion of others; "Selfish men
were...trying to make capital for themselves out of the
sacred cause of civil rights"- Maria Weston Chapman [ant:
unselfish]
From The Collaborative International Dictionary of English v.0.48 [gcide]:
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.
[1913 Webster]
They judge of things according to their own private
appetites and selfish passions. --Cudworth.
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In that throng of selfish hearts untrue. --Keble.
[1913 Webster]
2. (Ethics) Believing or teaching that the chief motives of
human action are derived from love of self.
[1913 Webster]
Hobbes and the selfish school of philosophers.
--Fleming.
[1913 Webster]