粗心的驾驶员对于公众是一种危险.A careless driver is a danger to the public.据传这场大火是由一位粗心的吸烟者造成的.It transpired that the fire was caused by a careless smoker.粗心的驾驶员把汽车撞在墙上.The careless driver ran his car into a wall....

“粗心的”的英语可以翻译为：careless，negligent，harebrained，slapdash，hairbrained ...