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impervious
01
preventing a substance such as liquid from passing through
Examples
The impervious seal on the container kept the chemicals inside safe from contamination.
The impervious barrier prevents water from seeping into the basement.
02
resistant to being affected or damaged by something
Examples
His thick skin seemed impervious to criticism.
The new coating made the wall impervious to moisture.
Lexical Tree
impervious
pervious
