invulnerable

Immune to attack; impregnable.

Impossible to damage, injure, or wound.

Not vulnerable; incapable of being wounded, hurt, or harmed.

Hence Not to be damaged or injuriously affected by attack: as, invulnerable arguments or evidence.

Incapable of being wounded, or of receiving injury.

Unanswerable; irrefutable; that can not be refuted or convinced.

Incapable of being wounded, or of receiving injury; not vulnerable.

Unanswerable; irrefutable; unable to be damaged by an attack or convinced; as, an invulnerable argument.

immune to attack; impregnable