Definition of downer noun from the Oxford Advanced Learner's Dictionary



    BrE BrE//ˈdaʊnə(r)//
    ; NAmE NAmE//ˈdaʊnər//
    (informal) Unhappiness, Addiction
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  1. 1 [usually plural] a drug, especially a barbiturate, that relaxes you or makes you want to sleep compare upper See related entries: Addiction
  2. 2an experience that makes you feel sad or depressed Not getting the promotion was a real downer. He's really on a downer (= very depressed). See related entries: Unhappiness
See the Oxford Advanced American Dictionary entry: downer