1. Concerned chiefly or only with oneself: "Selfish men were . . . trying to make capital for themselves out of the sacred cause of human rights" (Maria Weston Chapman).
2. Arising from, characterized by, or showing selfishness: a selfish whim.

The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.