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impervious
01
preventing a substance such as liquid from passing through
Example
The impervious coating on the roof protects the building from water damage.
The impervious barrier prevents water from seeping into the basement.
The impervious seal on the container kept the chemicals inside safe from contamination.
02
resistant to being affected or damaged by something
Example
The car 's windows were impervious to bullets.
The high-quality paint was impervious to fading and wear.
The new coating made the wall impervious to moisture.
Example
The impervious coating on the roof protects the building from water damage.
The impervious barrier prevents water from seeping into the basement.
The impervious seal on the container kept the chemicals inside safe from contamination.
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