- depressant - capable of depressing physiological or psychological activity or response by a chemical agent
Antonyms: stimulative, adrenocorticotropic, adrenocorticotrophic, analeptic, excitant, excitative, excitatory, irritating, irritative, stimulant, stimulating
- 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 depress1