impenetrate /im-penˈi-trāt/

1. To permeate
2. To penetrate thoroughly

• rainbow therapy
• rainbow-tinted
• rainbow trout
• rainbow trouts
• rainbowy
• rain cats and dogs
• rain-chamber
• rain-chambers
• programming languages
• programmings
• programs
• program trader
• program traders
• program trading
• progress
• progress chaser
• progress chasers
• progressed
• progresses
• progressing
• progression
• progressional
• progressionary
• progressionism
• progressionisms