1. A polite, respectful, and well-mannered suggestion, offer, or proposal made with consideration for the other person
He made a courteous proposition to help with the project, asking if she would appreciate his assistance.
Ele fez uma proposta cortês para ajudar no projeto, perguntando se ela apreciaria sua assistência.
2. A formal or diplomatic suggestion presented with appropriate etiquette and deference
The ambassador presented a courteous proposition to resolve the dispute between the nations.
O embaixador apresentou uma proposta cortês para resolver a disputa entre as nações.