1. Someone who cares more about other people than themselves.
2. Having little or no concern for oneself.
3. Devoted to others.
"She's so selfless, I can't believe she gave her 50$ to a hobo."
"Christy is helping her abusive boyfriend get his life back and she doesn't even love him anymore. Why is she being so selfless?"
someone who lacks a sense of self. usually someone who is selfless ends up as an emo or a depressant, and is constantly mad at the world, and his dog.
O.M.G that kid looks so selfless... why doesn't he/she just go kill him/herself? -_-