任性
[rèn xìng]
capricious; self-willed; wayward; unrestrained; willful; petulance
汉英大词典
capricious; self-willed; wayward; unrestrained; intractable; headstrong; wilful:

任性的小孩

a wilful child

中中释义
任性 [rèn xìng]
[willful;capricious] 听凭秉性行事;放纵不约束自己

曹植更不守法,饮酒无节,任性而行,是一个纯粹的文士

双语例句
全部 capricious self-willed wayward
1
有本事任性的人，也要有本事坚强！

Those have the ability to be capricious should also strong. 

bbs.hxen.com

2
中国女孩太任性了，怎么都不能让她们满意啊。

Chinese girls are too capricious and hard to take care of. 

www.ltaaa.com

3
她让父母担惊受怕，从中取得任性的快乐。

She finds a perverse pleasure in upsetting her parents. 

《牛津高阶英汉双解词典》

4
她的任性妄为和喜怒无常让我整天提心吊胆。

I lived in terror of her sudden caprices and moods. 

《柯林斯高阶英汉双解学习词典》

5
为什么要宣传报道这个行为任性、青春期未满的白痴呢？

Why give publicity to this self-indulgent, adolescent oaf? 

《柯林斯高阶英汉双解学习词典》