Her husband's cool judgement was a counterbalance to her impulsiveness.她丈夫的冷静判断对她的冲动起着抵消作用。Her impulsiveness gets her in trouble.冲动使她陷入麻烦。His impulsiveness surprised her. He was normally so careful.他的冲动令她惊讶，平常他很谨慎的。The president's impulsiveness often worries his advisers.总统爱冲动的脾气经常让他的顾问们担心。