unüberwindlich
From LSJ
θαρσεῖν χρὴ φίλε Βάττε: τάχ' αὔριον ἔσσετ' ἄμεινον → you need to be brave, dear Battus; perhaps tomorrow will be better | Take heart, dear Battos! Tomorrow will be better.
German > Latin
unüberwindlich, invictus (unbesiegbar, von Pers.). – inexpugnabilis (unerstürmbar, von Orten). – qui, quae, quod superari non potest (bildl., unübersteiglich, z.B. impedimenta).
