“冲动的”用英语怎么说？

一贯性急冲动的他又宣布要退学了。With characteristic impetuosity, he announced he was leaving school.总统爱冲动的脾气经常让他的顾问们担心。The president's impulsiveness often worries his advisers.感情容易冲动的人做事往往不加考虑.Emotional people don't stop to ca...