(noun, adjective)


1. capable of depressing physiological or psychological activity or response by a chemical agent

Similar word(s): ataractic, ataraxic, sedative, tranquilising, tranquilizing, tranquillising, tranquillizing, narcotic, narcotising, narcotizing, relaxant, hypnagogic, hypnogogic, somniferous, somnific, soporiferous, soporific


1. a drug that reduces excitability and calms a person

Similar word(s): downer, sedative

Definition categories: man–made, medicament, medication, medicine

Sentences with depressant as a noun:

- Alcohol acts first as a stimulant and then as a depressant.