#impermeability__impermeableness  the property of something that cannot be pervaded by a liquid
  exclusion:  permeability
  supertype:  solidity.consistency__solidness__solidnes  the consistency of a solid
  subtype:  retentivity__retentiveness__retentivenes  the power of retaining liquid: "moisture retentivity of soil"
     subtype:  urinary_retention__urinaryretention  holding urine in the urinary bladder; "he has a problem with urinary retention"
  subtype:  impenetrability__imperviousnes  resistance to penetration by a liquid
  subtype:  nonabsorbency  the property of not being absorbent

No statement uses or specializes impermeability; click here to add one.