ultraquiet
/ˌʌltrəˈkwaɪət/
adjective
- Extremely quiet; making very little or no sound.
- We bought an ultraquiet dishwasher that doesn't disturb our conversations.
- The library's new ultraquiet study room has soundproof walls.
- The electric car's motor is ultraquiet, so pedestrians barely hear it coming.
- Very calm and peaceful, without noise or disturbance.
- The meditation retreat was held in an ultraquiet valley far from the city.
- They found an ultraquiet beach where they could relax without any crowds.
- After the storm passed, the forest became ultraquiet, with only the drip of water from leaves.