impervious - Dictionary definition and meaning for word impervious
im(not)+pravesh(enter) so unpenetrable...
"i m pervez(pervez musharraf)"...no matter wat u say, i won't be affected!!
A pervert is trying to rape me. But I'm not scared. He won't be able to penetrate me, because I'm impervious - immuned to perverts.
impervious = im-'not' + per-'completely' + vious 'via'[old] => not (completely via) => impossible to penetrate
IM = not + PERVIoUS = letting things through