invulnerable

And, given their wobbly form, England are certainly not invulnerable to an upset.

Silver lining: King Charles' portrait is invulnerable to Just Stop Oil attacks!

And without it, mice and goats have proved invulnerable when their brains are injected with infectious prion; cattle brain tissue examined in the lab has, too.

Israelis felt almost completely invulnerable and certainly not vulnerable to a small terrorist army.

And to me that’s kind of like a beautiful metaphor about the teenage experience when you’re like, ‘I’m invulnerable, invincible. I can do anything. I’m the smartest person who ever lived.’