reckless
/ˈrɛkləs/
marked by defiant disregard for danger or consequences; ; -Macaulay
中文释义：鲁莽的；不计后果的
His reckless driving caused a serious accident on the highway.
他鲁莽的驾驶在高速公路上导致了一起严重事故。
The company's reckless spending led to its bankruptcy.
公司不计后果的开支导致了破产。