impenetrate /im-penˈi-trāt/

1. To permeate
2. To penetrate thoroughly

impenetrāˈtion noun

• haemat-
• haematemeses
• impostures
• impot
• impotence
• impotences
• impotencies
• impotency
• impotent
• impotently
• impots
• impound
• impoundable
• impoundage
• impoundages
• impounded
• impounder
• impounders
• impounding
• impoundment
• impoundments
• impounds
• impoverish
• impoverished
• impoverishes