1-Stop Dictionary Reference

Impermeable

Acceptable For Game Play - US & UK word lists

This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

The American Heritage® Dictionary of the English Language, 4th Edition

adj. Impossible to permeate: an impermeable membrane; an impermeable border.

Wiktionary, Creative Commons Attribution/Share-Alike License

adj. impossible to permeate

adj. not allowing passage, especially of liquids; waterproof

the GNU version of the Collaborative International Dictionary of English

adj. Not permeable; not permitting passage, as of a fluid. through its substance; impervious; impenetrable.

The Century Dictionary and Cyclopedia

Not permeable; not permitting the passage of a fluid (especially water) through its substance.

WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

adj. preventing especially liquids to pass or diffuse through

Word Usage

"On the wall hung a simple chart of a rock formation with layers labelled impermeable, source, permeable and reservoir; a list saying things like spudded Oct. '71, plugged and abandoned Jan.' 72; and three brightly coloured maps of the North Sea, each of them showing a different aspect of the oil drilling operations going on there."

Equivalent

water-resistant retentive water-repellent

Antonym

permeable

Cross Reference

nonpermeable permeability

Synonym

Words with the same meaning

impervious impenetrable impassable

Same Context

Words that are found in similar contexts

impervious permeable porous water-tight oil-bearing