1. in a manner that is not conspicuous, noticeable, or intrusive; without drawing attention to oneself
She slipped unobtrusively into the back of the room.
Ela entrou discretamente pela porta dos fundos da sala.
2. done or happening in a quiet, unobtrusive way without causing disturbance
He worked unobtrusively in the background.
Ele trabalhou discretamente nos bastidores.