1ADJ-GRADED [usually ADJ n](生活)放縱的,狂歡的,不羁的 If you say that someone has a riotous lifestyle, you mean that they frequently behave in a excessive and uncontrolled way, for example by eating or drinking too much. (生活)放縱的,狂歡的,不羁的 [formal]
...aristocrats who wasted their inheritances in riotous living.
2ADJ-GRADED [usually ADJ n](行爲或事件)狂歡的,喧鬧的,放縱的 You can describe someone's behaviour or an event as riotous when it is noisy and lively in a rather wild way. (行爲或事件)狂歡的,喧鬧的,放縱的
The dinner was often a riotous affair enlivened by superbly witty speeches.
宴會常常會因爲一些非常诙諧的講話而氣氛活躍,熱鬧非凡。
...a riotous exhibition of boogie-woogie piano playing.
...a slapstick affair which I found riotously amusing.
讓我覺得熱鬧有趣的一件滑稽事
3ADJ [ADJ n]色彩豐富的;五顔六色的;裝飾華麗的 You can describe things as riotous when they are very colourful or decorative rather than plain or simple. 色彩豐富的;五顔六色的;裝飾華麗的
...a riotous collection of gaudy and glamorous dresses.