licentiousness       
noun [ U ]  formal disapproving uk/laɪˈsen.ʃəs.nəs/ us/laɪˈsen.ʃəs.nəs/
 淫荡,放荡
behaviour that is sexual, in a way that is uncontrolled and socially unacceptable
  When it first came out, the novel was banned for licentiousness. 小说刚问世时,因内容淫乱而被禁。 
 Charles's reign ushered in a period of licentiousness. 查尔斯的统治迎来了一个放荡的时期。 
 See: licentious
 - More examples
- They hit back against what they saw as the growing licentiousness and depravity of the movie industry.
- Seeing how much we know about Roman licentiousness, it is not surprising that a great deal of erotic material was found in Pompeii.
- All manner of licentiousness went on in that house.