bring a knife to a gunfight

bring a knife to a gunfight

To come poorly prepared or equipped for some task, goal, competition, or confrontation. Often used in the negative as a forewarning or piece of advice. Make sure you have researched your position thoroughly and comprehensively before the debate. You don't want to bring a knife to a gunfight. If you haven't studied law, representing yourself in court is like bringing a knife to a gunfight.
See also: bring, gunfight, knife
Farlex Dictionary of Idioms.
See also:
  • gunfight
  • don't bring a knife to a gunfight
  • at risk to (someone, something, or oneself)
  • at risk to yourself/somebody/something
  • do (something) at (one's) own risk
  • do something at your own risk
  • at (one's) own risk
  • risk
  • peril
  • at your peril
References in periodicals archive
Col Richard Szafranski's article "The First Rule of Modern Warfare: Never Bring a Knife to a Gunfight" (Winter 2005) has made me think.