I.hard as steel, etc., adamantine: “saxa,” Lucr. 2, 447: “duritia,” Plin. 37, 11, 73. —Hence poet., extremely hard, inflexible, invincible: “clavi,” Hor. C. 3, 24, 5: “tunica,” id. ib. 1, 6, 13: “juga,” Prop. 3, 9, 9; cf. aënus.
ădămantĭnus , a, um, adj., = ἀδαμάντινος,