as to be

as to be

Similar enough to something as to become it. You need to stay here and take a nap if you're so exhausted as to be a danger on the road.
Farlex Dictionary of Idioms.
See also:
  • horizontal engineering
  • draw (something) to
  • draw to
  • have the sniffles
  • have the snuffles
  • demand (something) of (someone or something)
  • demanding
  • fagged-out
  • cranky
  • dog-tired