1. A job or assignment that causes physical, mental, or emotional fatigue; a draining or tiresome undertaking
Caring for elderly parents is an exhausting task.
Cuidar dos pais idosos é uma tarefa desgastante.
2. Work that wears down one's energy, patience, or resources over time
The long commute has become an exhausting task for him.
O longo trajeto se tornou uma tarefa desgastante para ele.