1. Of persons; marked by failure to realize full potentialities
   "unfulfilled and uneasy men"
   - unrealized, unrealised [Brit]

See also: unsuccessful

• checklist
• checkmate
• checkout
• checkout counter
• checkout line
• checkout time
• checkpoint
• checkrein
• checkroom
• checkrow
• checksum
• checkup
• cheddar
• cheddar cheese
• cheddar pink
• cheek
• cheek by jowl
• cheek muscle
• cheek pouch
• cheekbone
• cheekily
• cheekiness
• cheekpiece
• cheeky
• cheep