Nonpermeable vs. Impermeable

Nonpermeableadjective

Not permeable.

Nonpermeableadjective

(physics) Having the same magnetic permeability as that of free space, so that the material in question has a magnetic permeability \mu = \mu_0 (where μ0 = 4π×10−7 N A−2 exactly in SI units).

Impermeableadjective

Impossible to permeate.

Impermeableadjective

Not allowing passage, especially of liquids; waterproof.

Impermeableadjective

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

Impermeableadjective

preventing especially liquids to pass or diffuse through;