INVINCIBLE a.
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.
INVISIBLE a.
Incapable of being seen; not perceptible by vision; not visible. To us invisible, or dimly seen In these thy lowest works. Milton. Invisible bird (Zoöl.), a small, shy singing bird (Myadestes sibilons), of St. Vincent Islands. -- Invisible green, a very dark shade of green, approaching to black, and liable to be mista…