1) Charitable 2) Heroic 3) Selfless 4) Unselfish 1) French word used in English 2) Generous 3) Hardly selfish 4) Kind 5) Selfless 6) Unselfish 
Self-destructive. or potentially self-destructive behavior performed for the benefit of others.
• (a.) Regardful of others; beneficent; unselfish; -- opposed to egoistic or selfish.
Self-destructive
Al`tru·is'tic adjective [ Confer French altruiste , adjective See Altruism ..] Regardful of others; beneficent; unselfish; -- opposed to egoistic or selfish . Bain. -- 
[adj] - showing unselfish concern for the welfare of others
selfless adjective showing unselfish concern for the welfare of others
unselfishly concerned for or devoted to the welfare of others (opposed to egoistic). · of or pertaining to behavior by an animal that may be to its disadvantage but that benefits others of its kind, often its close relatives.
[SAT terms] showing unselfish concern for the welfare of others