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Adjective: impermeable  im'pur-mee-u-bul
  1. Preventing especially liquids to pass or diffuse through
    "impermeable stone"; "an impermeable layer of scum"; "a coat impermeable to rain"

See also: imperviable, impervious, retentive, tight, water-repellent, water-resistant

Antonym: permeable

Encyclopedia: Impermeable

Nearest

imperiousness
imperishability
imperishable
imperishableness
imperishingness
imperium
impermanence
impermanency
impermanent
impermeability
impermeable
impermeableness
impermissibility
impermissible
impermissibly
impersonal
impersonality
impersonally
impersonate
impersonation
impersonator