LEARNit Dictionary
impervious
adjective
/ɪmˈpɜːviəs/
UK
/ɪmˈpɜːrviəs/
US
1
not affected or influenced by something
غیر قابل نفوذ, نافذناپذیر
2
not allowing a liquid or gas to pass through
غیرقابل نفوذ, نفوذناپذیر
an
impervious rock/layer
impervious to moisture