licentiousness
n. 放蕩;放肆
If you describe a person as licentious, you mean that they are very immoral, especially in their sexual behaviour.
...alarming stories of licentious behaviour.
關於放蕩淫亂行為的駭人聽聞的故事
1. the quality of being lewd and lascivious
2. dissolute indulgence in sensual pleasure