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altruistic

[al-troo-is-tik]
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adjective
  1. unselfishly concerned for or devoted to the welfare of others (opposed to egoistic).
  2. Animal Behavior. of or relating to behavior by an animal that may be to its disadvantage but that benefits others of its kind, often its close relatives.
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Origin of altruistic

First recorded in 1850–55; altru(ism) + -istic
Related formsal·tru·is·ti·cal·ly, adverbhy·per·al·tru·is·tic, adjectivenon·al·tru·is·tic, adjectivenon·al·tru·is·ti·cal·ly, adverb

Synonyms

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1. charitable, generous, philanthropic; benevolent, unselfish.

Antonyms

1. self-centered, selfish, mean.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Word Origin and History for non-altruistic

altruistic

adj.

1853, from French altruiste (adj.), from altruisme (see altruism) + -ic.

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Online Etymology Dictionary, © 2010 Douglas Harper