1. A way of speaking, behaving, or expressing oneself that lacks clarity, precision, or specificity
He spoke in a vague manner, avoiding direct answers to the questions.
Ele falou de uma maneira vaga, evitando respostas diretas às perguntas.
2. An indistinct or unclear method of communication or action
The instructions were given in a vague manner, leaving everyone confused.
As instruções foram dadas de uma maneira vaga, deixando todos confusos.