selfless

adj

1. Having, exhibiting or motivated by no concern for oneself but for others; unselfish.

   “In a selfless act of gratitude for saving his mother's life, Peter committed to giving money to his local breast cancer charity each year for the rest of his life.”

   “Because a certain degree of selfless behavior is essential to the smooth performance of any human group, selflessness run amok can crop up in political contexts.”