1. An action or deed performed with consideration only for one's own interests, benefits, or desires, without regard for others
Refusing to help a friend in need is a selfish act.
Recusar ajudar um amigo em dificuldade é um ato egoísta.
2. Behavior motivated by self-interest rather than altruism or concern for the common good
Taking the last piece of cake without offering to share was a selfish act.
Pegar o último pedaço de bolo sem oferecer para compartilhar foi um ato egoísta.