In‐vul″ner‐a‐ble (?), a. [L. invulnerabilis: cf. F. invulnérable. See In- not, and Vulnerable.]
1. Incapable of being wounded, or of receiving injury.
Neither vainly hope
To be invulnerable in those bright arms. Milton.
2. Unanswerable; irrefutable; that can not be refuted or convinced; as, an invulnerable argument.