Found 2 items, similar to depressant.
English → English (WordNet) Definition: depressant depressant adj : capable of depressing physiological or psychological activity or response by a chemical agent [ant: stimulative] n : a drug that reduces excitability and calms a person [syn: sedative, sedative drug, downer]
English → English (gcide) Definition: Depressant Depressant \De*press"ant\, n. (Med.) An agent or remedy which lowers the vital powers. [1913 Webster]