adamantinus
From LSJ
Οὐκ ἔστι σιγᾶν αἰσχρόν, ἀλλ' εἰκῆ λαλεῖν → Silere non est turpe, sed frustra loqui → nicht Schweigen schändet, sondern Schwätzen auf gut Glück
Latin > English (Lewis & Short)
ădămantĭnus: a, um, adj., = ἀδαμάντινος,
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.
