waterproof

adjective

Impervious to or unaffected by water.

adjective

Made of or coated or treated with rubber, plastic, or a sealing agent to prevent penetration by water.

noun

A material or fabric that is impervious to water.

noun

A raincoat or other such outer garment.

transitive verb

To make impervious to water.

Impervious to water, or nearly so

noun

Any material which repels water; especially, a light woolen cloth made for the purpose, and subjected to some waterproofing application.

noun

A garment of some material that repels water, made either of waterproof , or of mackintosh or a similar material made with india-rubber.

To render impervious to water, as cloth, leather, etc.

adjective

Proof against penetration or permeation by water; impervious to water.