If someone or something is invulnerable, they cannot be harmed or damaged.
例句
Many daughters assume that their mothers are invulnerable.很多女儿都认为她们的母亲无比坚强。...a system that would make the U.S. invulnerable to nuclear attack.会使美国免受核袭击的系统
英英词典释义
Noun
1. having the strength to withstand attack
2. the property of being invulnerable; the property of being incapable of being hurt (physically or emotionally)