?licentious是一個(gè)形容詞，意思是放蕩的、淫亂的、放縱的。它來自于拉丁語的licentiosus，意為“放縱的”。

用法：

licentious通常用來形容一個(gè)人或者行為，表示其放縱、不受約束、放肆的性質(zhì)。它可以用來形容一種行為方式，也可以用來形容一個(gè)人的品格。

例句1-5句且中英對照：

1. His licentious behavior at the party shocked everyone. (他在派對上放肆的行為讓所有人都感到震驚。)

2. The king's licentious lifestyle was a disgrace to the royal family. (國王放縱的生活方式讓皇室蒙羞。)

3. The city was known for its licentious nightlife and wild parties. (這座城市以其放蕩不羈的夜生活和狂野派對而聞名。)

4. She was attracted to his charm, but also wary of his licentious nature. (她被他的魅力所吸引，但也對他放蕩不羈的本性感到惕。)

5. The novel depicts a society that is on the brink of collapse due to its licentious values and lack of moral standards. (這部小說描繪了一個(gè)因價(jià)值觀混亂和道德標(biāo)準(zhǔn)缺失而瀕臨崩潰的社會。)

同義詞及用法：

1. wanton：意為“放肆的、無節(jié)制的”，常用來形容不受約束的行為或者人。

2. debauched：意為“墮落的、放蕩的”，常用來形容道德敗壞的人或者生活方式。

3. dissolute：意為“放縱的、荒淫的”，常用來形容不受道德約束的行為。

4. profligate：意為“揮霍無度的、放蕩的”，常用來形容花錢浪費(fèi)或者生活放縱的人。

5. immoral：意為“不道德的、邪惡的”，常用來形容違背道德準(zhǔn)則或者倫理標(biāo)準(zhǔn)的行為。