- sedative, sedative drug, depressant, downer - a drug that reduces excitability and calms a person
--1 is a kind of medicine, medication, medicament, medicinal drug; drug of abuse, street drug
--1 has particulars:benzodiazepine; bromide; chloral hydrate; glutethimide, Doriden; sedative-hypnotic, sedative-hypnotic drug Derived form: verb down5