What context can I use each word in?
Learn when and how to use these words with these examples!
waterproof
Example
This jacket is waterproof, so you won't get wet in the rain. [waterproof: adjective]
Example
The company claims that their new product is completely waterproof. [waterproof: adjective]
Example
I applied a waterproof sealant to the roof to prevent leaks. [waterproof: adjective]
impermeable
Example
The container is made of impermeable plastic to keep the contents dry. [impermeable: adjective]
Example
The membrane is designed to be impermeable to water and other liquids. [impermeable: adjective]
Example
The coating creates an impermeable layer that prevents water from seeping through. [impermeable: adjective]
Good things to know
Which word is more common?
Waterproof is more commonly used than impermeable in everyday language.
What’s the difference in the tone of formality between waterproof and impermeable?
Impermeable is more formal than waterproof and is often used in technical or scientific contexts.