invulnerability

nouns

having the strength to withstand attack
impregnability, invulnerability
the property of being invulnerable; the property of being incapable of being hurt (physically or emotionally)
invulnerability
is derived from
invulnerable
antonym
vulnerability
is a type of (narrower)
the property of being physically or mentally strong
"fatigue sapped his strength"
strength