1. A business transaction, contract, or operation that is legally or formally invalid, null, or without legal effect
The court declared the transaction an invalid business due to lack of proper authorization.
O tribunal declarou a transação um negócio inválido devido à falta de autorização adequada.
2. A business venture that does not comply with regulatory requirements or legal standards
Operating without a license made their entire operation an invalid business.
Operar sem licença tornou toda a sua operação um negócio inválido.