Breadcrumb Home > Thesaurus > D Synonyms of downer Find synonyms for: Noun 1. sedative, sedative drug, depressant, downer, medicine, medication, medicament, medicinal drug, drug of abuse, street drug usage: a drug that reduces excitability and calms a person WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of downer (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: ennui Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language