impenetrate /im-penˈi-trāt/

1. To permeate
2. To penetrate thoroughly

impenetrāˈtion noun

• read-outs
• reads
• read someone like a book
• read someone's mind
• read the riot act
• read up
• readvance
• readvances
• readvertise
• readvertised
• readvertisement
• readvertises
• readvertising
• readvise
• readvised
• readvises
• readvising
• read-write head
• read-write heads
• read-write memory
• ready
• readying
• ready-made
• ready meal
• ready meals