1. A manner or way of speaking, acting, or expressing oneself that lacks clarity, precision, or specificity
He explained the project in a vague manner, leaving everyone confused.
Ele explicou o projeto de modo vago, deixando todos confusos.
2. An imprecise or indefinite method of doing something
The instructions were given in a vague manner without clear steps.
As instruções foram dadas de modo vago sem passos claros.