impenetrate /im-penˈi-trāt/

1. To permeate
2. To penetrate thoroughly

impenetrāˈtion noun

• canalizes
• canalizing
• canals
• canapé
• canapés
• canard
• canards
• Canarese
• canaried
• canaries
• canary
• canary-bird
• canary-birds
• canary-creeper
• canary-creepers
• canary-grass
• canarying
• canary-seed
• canary-wood
• canary yellow
• canary yellows
• canasta
• canastas
• canaster
• canasters