bacchanalian
adjective literary uk/ˌbæk.əˈneɪ.li.ən/ us/ˌbæk.əˈneɪ.li.ən/
（尤指聚会）狂饮作乐的
(especially of a party) involving a lot of drinking of alcohol, uncontrolled behaviour, and possibly sexual activity
a bacchanalian orgy 纵酒狂欢会
Synonym: orgiastic