reckless

1. ADJ If you say that someone is reckless, you mean that they act in a way which shows that they do not care about danger or the effect their behaviour will have on other people. 鲁莽的; 不顾后果的

He is charged with reckless driving. 他被控莽撞驾驶。

2. recklesslyADV 鲁莽地; 不计后果地

He was leaning recklessly out of the open window. 他鲁莽地从开着的窗户探出身子。