Word Study
invincibility
CIDE DICTIONARY
invincibility, n. [Cf. F. invincibilité.].
The quality or state of being invincible; invincibleness. [1913 Webster]
THESAURUS
invincibility
authenticity, authoritativeness, calculability, deathlessness, dependability, faithworthiness, firmness, immortality, impenetrability, imperishability, impregnability, incorruptibility, indelibility, indestructibility, indomitability, ineffaceability, ineradicability, inerasableness, inexpugnability, insuperability, inviolability, invulnerability, irresistibility, predictability, reliability, secureness, security, solidity, soundness, stability, staunchness, steadfastness, steadiness, substantiality, trustworthiness, unassailability, unattackableness, unbeatableness, unconquerableness, unerringness, validityFor further exploring for "invincibility" in Webster Dictionary Online