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.
Lead forth to battle these my sons
Invincible.
Milton.
-- In*vin"ci*ble*ness, n. --
In*vin"ci*bly, adv.