| a. | 1. | (Med.) Tending to calm, moderate, or tranquilize |
| n. | 1. | (Med.) A remedy which allays irritability and irritation, and irritative activity or pain. |
| Noun | 1. | sedative - a drug that reduces excitability and calms a person |
| Adj. | 1. | sedative - tending to soothe or tranquilize; "valium has a tranquilizing effect"; "took a hot drink with sedative properties before going to bed" |