If you want to know the record holder for the highest IQ in the world, then you're in the right place. Although many people think it's Steven Hawking with an IQ of slightly over 200, or Marilyn vos Savant with and IQ of 228. We want to mention that results of IQs can vary from test to test and by age.
One car passes another at breakneck speed. adjective. The definition of breakneck is something that is moving really, dangerously fast. Driving at 100 miles per hour is an example of driving at breakneck speed. very fast, reckless, dangerous, etc.: said of speed, pace, etc.
Without waiting to see the extent of the damage, the truck had gone on at breakneck speed. But there was more than blankets in the buggy that came up at breakneck speed. From there he rode, at breakneck speed, without bridle or saddle, to the camp of his followers.