flightiness 

英汉解释

n. 疯狂；轻浮

同义词

n. arbitrariness，capriciousness，whimsey，whimsicality

参考例句

1. At present, I really regret my flightiness before to know ICIBA so late.
此刻，我真后悔我过去的浮躁，恨自己为何这么久才了解“爱词霸”。
2. And that brings up another reason why the flightiness of contemporary feminism is a problem.
并且这也给出了当代女权运动为什么如此轻浮的另一个原因。
3. I really regret my flightiness before and wasting much time to know ICIBA so late at the very moment.
此刻，我真后悔过去的浮躁，恨自己为何蹉跎了这么久才了解“爱词霸”。

英英解释

n.
  1. the trait of acting unpredictably and more from whim or caprice than from reason or judgment

网络释义

flightiness
轻浮; 疯狂;
flibbertigibbet flightiness levity triviality
轻浮;
flightiness folie insaneness insanity madness nuttiness
疯狂;