Regardful of others; beneficent; unselfish; -- opposed to egoistic or selfish.(adverb)
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Use "altruistically" in a sentence
"In 1928, the United States cosponsored the Kellogg-Briand Treaty, in which more than sixty nations ambitiously and altruistically agreed to outlaw war."
"In other words, while staying together for the kids is done altruistically for children, it might in the end up being more harmful than helpful."
"Inclusive fitness theory makes the worker the center of attention, asking why the worker behaves altruistically and raises the offspring of the queen."