Subsonic

The subsonic engine on the plane allowed for a smooth and quiet ride.

The car had a subsonic engine that was designed for fuel efficiency.

The subsonic sound of the bass guitar filled the concert hall.

The subsonic wind created a gentle breeze through the trees.

The subsonic whispers of the lovers were not overheard by anyone else.

The subsonic vibrations of the earthquake were detected by the seismograph.

The missile was traveling at a subsonic speed to minimize the noise it produced.

The new supersonic aircraft design aimed to create a quieter subsonic sonic boom.

The fighter jet flew at a subsonic speed to avoid producing a sonic boom.

The subsonic flight of the airplane made for a quiet trip.

The bullet was subsonic, which meant it didn't make a loud noise when fired.

The sound of the subsonic bass was felt more than heard.

The missile was programmed to travel at a subsonic speed to avoid detection.

The subsonic flow of water in the river was calm and peaceful.

The subsonic vibration of the subwoofer added depth to the music.

The subsonic chirps of crickets are too high for humans to hear.

The subsonic pulse of the heart can be measured by an electrocardiogram.

The subsonic hum of the generator was only audible to dogs.

The subsonic wind turbine rotated at a slow speed to generate electricity.

The subsonic helicopter hovered over the building to perform a rescue operation.

The subsonic earthquake produced vibrations that were felt but not heard.

The subsonic speed of the airplane was below the speed of sound in air.

The subsonic spacecraft traveled through space at a speed lower than the speed of sound.