| Czech | narkotický |
| Chinese (simplified) | 安眠 , 催眠 , 安眠+的 , 催眠+的 , 睡眠 , 睡眠+的 , 想睡 , 想睡+的 , 困倦 , 困倦+的 |
| English | soporiferous , soporific ( ⊳ ) , somniferous , somnific , hypnogogic , hypnagogic |
| Italian | soporifero |
| Japanese | 入眠時 |
| Similar to: | depressant |
| Semantic Field: | alla |