quietly
adv. manneradv. in a way that makes very little or no noise. You also use it to describe doing something without attracting attention.
adv. in a manner characterized by little or no sound; with low volume or intensity. Can also describe an action performed without drawing notice or causing a disturbance.
She closed the door quietly so she wouldn't wake the baby.
The students worked quietly at their desks while the teacher graded papers at the front of the room.
The investigator moved quietly through the darkened hallway, careful to avoid the creaking floorboards that might betray his presence to those inside.
From Middle English quietely, quyetly, equivalent to quiet + -ly.
Manner adverb — typically placed after the main verb or after the object.
He spoke quiet to me.He spoke quietly to me.Learners often use the adjective 'quiet' instead of the adverb 'quietly' to describe how an action is performed.