dampener

Definitions

A device that reduces the amplitude of oscillations or vibrations.

Something that has a depressing or restraining effect on an activity or feeling.

Examples

The sudden rain acted as a dampener on the outdoor festival's attendance.

The new shock dampener significantly improved the smoothness of the car's ride.

Synonyms

deterrent discouragement check restraint inhibitor killjoy spoilsport

Antonyms

stimulant encouragement catalyst booster incentive motivator enhancer