licentious

1. ADJ If you describe a person as licentious, you mean that they are very immoral, especially in their sexual behaviour. (尤指性行爲)不道德的[正式]

...alarming stories of licentious behaviour. ...那些放蕩行爲的駭人聽聞的故事。

2. licentiousnessN-UNCOUNT

...moral licentiousness. ...道德敗壞。