1. A building, room, or area that is not currently occupied by tenants or residents
The landlord is trying to rent the untenanted space on the second floor.
O proprietário está tentando alugar o espaço desocupado no segundo andar.
2. An empty or vacant area in a property available for lease or occupation
After the business closed, the untenanted space remained empty for months.
Depois que o negócio fechou, o espaço desocupado permaneceu vazio por meses.