unverbesserlich

From LSJ

αἱ μέν ἀποφάσεις ἐπί τῶν θείων ἀληθεῖς, αἱ δέ καταφάσεις ἀνάρμοστοι τῇ κρυφιότητι τῶν ἀποῤῥήτων → as concerns the things of the gods, negative pronouncements are true, but positive ones are inadequate to their hidden character

Source

German > Latin

unverbesserlich, a) ganz fehlerfrei: emendatissimus (z.B. libri, scriptor; u. moralisch, ego illum optimum et emendatissimum existimo). – b) sehr schlecht: insanabilis (unheilbar).