1. Ruthless in competition
   "cutthroat competition";
   - fierce, bowelless [archaic]

1. Someone who murders by cutting the victim's throat
   "The cutthroat was known for his brutal methods in the criminal underworld"

Derived forms: cutthroats

See also: merciless, unmerciful

Type of: liquidator, manslayer [archaic], murderer

Encyclopedia: Cutthroat