adjective tending to soothe or tranquilize.
— synonyms: ataraxic, sedative, tranquilizing, tranquillizing, tranquilising, tranquillising
noun a drug used to reduce stress or tension without reducing mental clarity.
— synonyms: tranquilizer, tranquillizer, tranquilliser, antianxiety_agent, ataractic_drug, ataractic_agent