decadence

The Roman empire's decline has often been attributed, controversially, to moral decadence.罗马帝国的衰落常常被归咎于道德颓废，尽管这一观点颇具争议。

The art of the late nineteenth century was frequently accused of decadence by conservative critics.十九世纪末的艺术经常被保守的批评家指责为颓废。