Invincible \In*vin"ci*ble\, a. [L. invincibilis: cf. F.
invincible. See {In-} not, and {Vincible}.]
Incapable of being conquered, overcome, or subdued;
unconquerable; insuperable; as, an invincible army, or
obstacle.
[1913 Webster]
Lead forth to battle these my sons
Invincible. --Milton.
-- {In*vin"ci*ble*ness}, n. -- {In*vin"ci*bly}, adv.
[1913 Webster]