impenetrate /im-penˈi-trāt/

1. To permeate
2. To penetrate thoroughly

impenetrāˈtion noun

• flurries
• flurring
• flurrs
• flurry
• flurrying
• flus
• flush
• flush-box
• flush-boxes
• flushed
• flusher
• flushers
• flushes
• flushest
• flushier
• flushiest
• flushing
• flushings
• flushness
• flushnesses
• flushy
• fluster
• flustered
• flustering
• flusterment