dampenerEnglishOxford New American Dictionarydampener /ˈdamp(ə)nər, ˈdæmp(ə)nər / ▸ noun a thing that has a restraining or subduing effect: television and booze, those twin dampeners of the revolutionary spirit. – PHRASES put a dampener on have a depressing, subduing, or inhibiting effect on: the comments put a dampener on such an amazing trip.