ramˈpacious,a.rare. [var.rampageous, as if f. ramp v.1 + -acious.] = rampageous. 1837Dickens Pickw. xxii, A stone statue of some rampacious animal with flowing mane and tail, distantly resembling an insane cart-horse.1894Daily News 20 Apr. 5/4 A dog and a cat and three rampacious children.