N-COUNT
（使人忽视重要事情的）麻醉品，慰藉物
If you call something an opiate, you disapprove of it because it makes people think less or spend less time on important activities.
例句
...the opiate of mass entertainment...
起到麻痹作用的大众娱乐
It was Karl Marx who said, 'Religion is the opiate of the people'.
卡尔·马克思曾说，“宗教是人民的精神鸦片。”