a.

1. 暴亂的，聚眾鬧事的[Z]
2. 狂歡的，狂鬧的
   They spent a riotous night drinking and singing.

   他們飲酒唱歌狂歡了一夜。

3. 放縱的，放蕩的
4. 奔放的，不受約束的
5. 茂盛的

adj.

1. marked by or involving public disorder.
   ▸involving wild and uncontrolled behaviour.
2. having a vivid, varied appearance.