1. Services that fail to meet established quality standards, expectations, or requirements
The hotel received complaints about substandard services such as dirty rooms and slow staff.
O hotel recebeu reclamações sobre serviços de qualidade inferior, como quartos sujos e funcionários lentos.
2. Performance or delivery of services below acceptable levels
The company was fined for providing substandard services to its customers.
A empresa foi multada por fornecer serviços de qualidade inferior aos seus clientes.