impenetrate /im-penˈi-trāt/

1. To permeate
2. To penetrate thoroughly

impenetrāˈtion noun

• overlier
• overliers
• overlies
• overlive
• overlived
• overlives
• overliving
• overload
• overloaded
• overloading
• overloads
• overlock
• overlocked
• overlocker
• overlockers
• overlocking
• overlockings
• overlocks
• overlong
• overlook
• overlooked
• overlooker
• overlookers
• overlooking
• overlooks