Impervious(adjective)
Not allowing fluid to pass through.
Hindi meaning:अप्रवेशनीय
Synonyms: Impermeable, Impenetrable, Resistant
Antonyms: Permeable, Penetrable
Example: In other words, it's not impervious to moisture but it will get you through an afternoon cloudburst. <br><br> The coatings are weldable and impervious to automotive and hydraulic fluids.
Trick to remember: Pipe impervious ho gaya isliye har jagah pani bhar gaya. 
