Definition of IMPERMEABLE

impermeable

Meanings

Adjective

  • preventing especially liquids to pass or diffuse through
    • "impermeable stone"
    • "an impermeable layer of scum"
    • "a coat impermeable to rain"

Adj

  • Impossible to permeate.
  • Not allowing passage, especially of liquids; waterproof.

Origin / Etymology

Apparently from im- + permeable. Compare French imperméable, from Latin impermeābilis, from im- + permeābilis (“permeable”).

Synonyms

nonpermeable, sealed

Antonyms

permeable

Scrabble Score: 19

impermeable is a valid Scrabble (US) TWL word
impermeable is a valid Scrabble Word in Merriam-Webster MW Dictionary
impermeable is a valid Scrabble Word in International Collins CSW Dictionary

Words With Friends Score: 24

impermeable is a valid Words With Friends word