- Unselfishly concerned for the welfare of others; selfless.
- Denoting behaviour that is beneficial to others, especially with regard to evolution.
Late 19th century: from french altruiste, from latin alter "other" + french -iste.
- He was known for his altruistic nature and always went out of his way to help others.
- The organization's mission is to promote altruistic values and practices in society.
- Her actions were purely altruistic, she didn't expect anything in return.
- The volunteer work he did was motivated by altruistic reasons.
- The theory of altruistic behavior in animals proposes that certain behaviors have evolved because they benefit the group as a whole.