impermeable

/ɪmˈpɜːrmiəbəl/
adjective
  1. Not allowing liquids or gases to pass through.
    • The raincoat is made of an impermeable fabric that keeps you dry.
    • The container's impermeable seal prevented any air from leaking in.
    • Clay soil is nearly impermeable, so water pools on the surface.
  2. Not affected or influenced by something; resistant.
    • The company's culture was impermeable to new ideas from outside.
    • Her confidence made her impermeable to the negative comments.
    • He seemed impermeable to criticism, never changing his opinion.
What does "impermeable" mean? | whatsthatwordmean | whatsthatwordmean