adjective / noun / verb / adverb
quiet
KWYE-uht/ˈkwaɪət/
Free from conspicuous noise or disturbance.
The library stays quiet even when every table is full.

Etymology
Latin quietus described being calm or at rest. English quiet extended this idea from freedom from agitation or commotion to making little or no noise.
In context
even in high winds, while the main drone can stay 400 feet up in the sky, making the whole thing whisper quiet. (drone makes high pitched whistle) That is very quiet.
More examples
- I enjoy the quiet before everyone else wakes up.
- The crowd quiets when the speaker steps forward.
- We spend a quiet afternoon reading on the porch.
Forms
quiet · quieter · quietest · quiets · quieted · quieting
quietly adverb — With little noise or disturbance.
quietness noun — The quality of making little noise.