/ɪmˈpʌlsɪv/ adj.1.(acting suddenly)+ person易冲动的；轻率的
He is too impulsive to be a responsible prime minister.他太容易冲动, 很难成为一个负责可靠的首相。
2.(spontaneous)受感情驱使的；任性的； 自发的
He gave her an impulsive hug.他情不自禁地拥抱了她。
I am fairly objective and not given to impulsive actions.我客观公正, 而且不会感情用事。
3.(forceful)由冲动造成的；驱使的；推动的
an impulsive inner drive that keeps them at it推动他们坚持到底的内在动力
4.【物】冲激的
an impulsive disturbance that vertically displaces the water column上下移动水柱高度的冲激扰动
5.(of a sound)脉冲性的；多频声的