1. She betrayed him by acting faithlessly and cheating on him.
Ela o traiu agindo de forma infiel e traindo-o.

2. The soldier faithlessly abandoned his post during the battle.
O soldado abandonou covardemente seu posto durante a batalha.

3. The employee acted faithlessly by stealing from the company.
O funcionário agiu de forma desleal ao roubar da empresa.

4. She promised to love him forever, but she faithlessly left him for someone else.
Ela prometeu amá-lo para sempre, mas infielmente o deixou por outra pessoa.

5. The politician was known for acting faithlessly, constantly breaking promises to the people.
O político era conhecido por agir de forma infiel, constantemente quebrando promessas ao povo.

6. Despite being warned not to trust him, she faithlessly believed his lies.
Apesar de ser avisada para não confiar nele, ela infielmente acreditou em suas mentiras.