1. showing a disinterested and selfless concern for others; motivated by a desire to help rather than by personal gain
Her altruistic efforts to help the homeless community earned her widespread recognition.
Seus esforços altruístas para ajudar a comunidade de sem-abrigo lhe renderam reconhecimento generalizado.
2. characterized by or resulting from altruism; generous and charitable
The altruistic donation of the wealthy businessman saved the hospital from closure.
A doação altruísta do empresário rico salvou o hospital do fechamento.