riotous
adjective uk/ˈraɪ.ə.təs/ us/ˈraɪ.ə.t̬əs/
热闹的;喧闹的;放纵的
very loud and uncontrolled, and full of energy
We went to a riotous party and danced all night. 我们去参加了一个热闹非凡的聚会，跳了一晚上的舞。
UK Five students were arrested for riotous behaviour. 5名学生因为聚众闹事被逮捕。