1. The quality or state of being selfish; excessive concern with oneself and one's own interests, accompanied by a disregard for others
His selfishness prevented him from helping his friends in need.
Seu egoísmo o impediu de ajudar seus amigos necessitados.
2. A character trait marked by self-interest and lack of consideration for others
The CEO's selfishness led to poor working conditions for employees.
O egoísmo do CEO resultou em más condições de trabalho para os funcionários.