A device or substance that removes energy from a system or process.

A person who reduces or removes energy from a group or situation.

एक व्यक्ति जो किसी समूह या स्थिति से ऊर्जा कम करता है

English Usage: His constant complaining made him a de-energizer in the team meetings.

Hindi Usage: उसकी निरंतर शिकायतें उसे टीम की बैठकों में ऊर्जा निकालने वाला बना देती थीं।