1. Data or information that is incorrect, malformed, or does not meet the expected format or requirements
The system rejected the bad input and returned an error message.
O sistema rejeitou a entrada inválida e retornou uma mensagem de erro.
2. In computing, any data that fails validation or does not conform to specified parameters
Bad input in the form field prevented the user from submitting the registration.
A entrada inválida no campo de formulário impediu o usuário de enviar o registro.