1. Secretly and carefully planned
   "deep-laid plans"

See also: planned

• four-minute man
• four-needled
• four-o'clock family
• four-part harmony
• four-party
• four-petaled
• four-petalled
• four-ply
• four-poster
• four-pounder
• four-pronged
• four-sided
• four-spot
• four-stroke engine
• four-stroke internal-combustion engine
• four-tailed bandage
• four-wheel
• four-wheel drive
• four-wheeled
• four-wheeler
• four-wing flying fish
• four-year-old
• fourchette
• Fourdrinier
• fourfold