1. Planned in advance
   "with malice aforethought"
   - planned, plotted

See also: premeditated

• gun muzzle
• gun pendulum
• gun rest
• gun room
• gun smoke
• gun trigger
• gun turret
• gun-shy
• gunboat
• gunboat diplomacy
• guncotton
• gunfight
• gunfighter
• gunfire
• gunflint
• gung ho
• gunge
• gunite
• gunk
• gunky
• gunlock
• gunman
• gunmetal
• Gunnar Myrdal
• gunnel