impenetrable /im-penˈi-trə-bl/

1. Incapable of being penetrated
2. Impervious
3. Inscrutable
4. Occupying space exclusively (physics)

impenetrabilˈity noun

• talent spotter
• talent-spotting
• taler
• talers
• tales
• talesman
• talesmen
• tale-teller
• tale-tellers
• tale-telling
• tali
• Taliacotian
• Talib
• Taliban
• taligrade
• talion
• talionic
• talions
• talipat
• talipats
• taliped
• talipes
• talipot
• talipots
• talisman