Yet the old man's confidence in the young man's acumen was invulnerable.
The darts of calamity may assail her on every side, but she is invulnerable to them all.
But for himself, it was clear, he was prepared at all points and invulnerable.
Since you'll be made of my thoughts, you'll be invulnerable.
It's our one weakness—the one Achilles heel in a m-machine that was meant ...