基本解释adj.暴乱的；狂欢的；放荡的；茂盛的同根派生 英汉例句用作形容词 (adj.)He was charged with riotous behaviour.他被控聚众闹事。We spent a riotous night at Christmas.圣诞节我们度过了一个狂欢之夜。He was expelled from college for riotous conduct.他因行为放荡而被勒令退学。