Here you are, an incredible insult.

impervious
adjective
1 he seemed impervious to the chill wind: unaffected by, untouched by, immune to, invulnerable to, insusceptible to, resistant to, indifferent to, heedless of, insensible to, unconscious of, oblivious to; proof against.
2 an impervious rain jacket: impermeable, impenetrable, impregnable, waterproof, watertight, water-resistant, repellent; (hermetically) sealed, zip-locked. ANTONYMS permeable.