斩钉截铁 zhǎn dīng jié tiě

DEFINITIONS

  1. lit. to chop the nail and slice the iron (idiom)
  2. fig. resolute and decisive
  3. unhesitating
  4. categorical

CHARACTERS

斩 zhǎn cut, chop, sever; behead
钉 dīng nail, spike; pursue closely
截 jié cut off, stop, obstruct, intersect
铁 tiě iron; strong, solid, firm