1. In computing and logic, an argument or input that does not meet the required criteria, constraints, or expected format for a function, method, or operation.
The program threw an error because an invalid argument was passed to the function.
O programa lançou um erro porque um argumento inválido foi passado para a função.
2. In debate or rhetoric, a line of reasoning that is logically flawed or unsupported by evidence.
His invalid argument failed to convince the jury.
Seu argumento inválido não conseguiu convencer o júri.