1. A farewell or parting that is private, discreet, or shared only between specific individuals, often implying secrecy or discretion
They exchanged a confidential goodbye in the hallway before the scandal broke.
Eles trocaram uma despedida confidencial no corredor antes do escândalo vir à tona.
2. A private or secret farewell, often used when departing under sensitive or delicate circumstances
The diplomat offered a confidential goodbye to his contacts before leaving the country.
O diplomata ofereceu uma despedida confidencial aos seus contatos antes de deixar o país.