Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of impervious is as below...

Impervious :: Impervious (a.) Not pervious; not admitting of entrance or passage through; as, a substance impervious to water or air..

Waterproof :: Waterproof (a.) Proof against penetration or permeation by water; impervious to water; as, a waterproof garment; a waterproof roof..

Opaque :: Opaque (a.) Impervious to the rays of light; not transparent; as, an opaque substance..

Deafening :: Deafening (n.) The act or process of rendering impervious to sound, as a floor or wall; also, the material with which the spaces are filled in this process; pugging..

Opacity :: Opacity (n.) The state of being opaque; the quality of a body which renders it impervious to the rays of light; want of transparency; opaqueness.

Star-read :: Starproof (a.) Impervious to the light of the stars; as, a starproof elm..

Sunrise :: Sunproof (a.) Impervious to the rays of the sun.

Intranscalent :: Intranscalent (a.) Impervious to heat; adiathermic.

Puddle :: Puddle (n.) Clay, or a mixture of clay and sand, kneaded or worked, when wet, to render it impervious to water..

Puddle :: Puddle (v. t.) To make impervious to liquids by means of puddle; to apply puddle to.

Deafen :: Deafen (v. t.) To render impervious to sound, as a partition or floor, by filling the space within with mortar, by lining with paper, etc..

Pack :: Pack (n.) To render impervious, as by filling or surrounding with suitable material, or to fit or adjust so as to move without giving passage to air, water, or steam; as, to pack a joint; to pack the piston of a steam engine..

Waterproof :: Waterproof (v. t.) To render impervious to water, as cloth, leather, etc..

Gastight :: Gastight (a.) So tightly fitted as to preclude the escape of gas; impervious to gas.

Impermeable :: Impermeable (a.) Not permeable; not permitting passage, as of a fluid. through its substance; impervious; impenetrable; as, India rubber is impermeable to water and to air..

Puddling :: Puddling (n.) The process of working clay, loam, pulverized ore, etc., with water, to render it compact, or impervious to liquids; also, the process of rendering anything impervious to liquids by means of puddled material..

Puddle :: Puddle (v. t.) To make dense or close, as clay or loam, by working when wet, so as to render impervious to water..

Waterproof :: Waterproof (n.) A substance or preparation for rendering cloth, leather, etc., impervious to water..

Impenetrably :: Impenetrably (adv.) In an impenetrable manner or state; imperviously.

Imperviable :: Imperviable (a.) Not pervious; impervious.

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