impenetrate /im-penˈi-trāt/

1. To permeate
2. To penetrate thoroughly

impenetrāˈtion noun

• diablerie
• diableries
• diablery
• diables
• diabolic
• diabolical
• diabolically
• diabolise
• diabolised
• diabolises
• diabolising
• diabolism
• diabolisms
• diabolist
• diabolists
• diabolize
• diabolized
• diabolizes
• diabolizing
• diabolo
• diabologies
• diabology
• diabolologies
• diabolology
• diabolos