ἀνεπίστροφος
From LSJ
ἔνθα οὐκ ἔστι πόνος, οὐ λύπη, οὐ στεναγμός, ἀλλὰ ζωὴ ἀτελεύτητος → where there is no pain, no sorrow, no sighing, but life everlasting
English (LSJ)
ον,
A = ἀνεπίστρεπτος, αὐχήν Ar.Byz.Epit.100.10; ἀ. πρός τι Simp.in de An.79.5; τινός Eustr.in EN110.2; ἀ. τι ἔχειν to be inattentive to, Sophon. in de An.20.34. Adv. -φως dub. in Hdn. 7.10.4; ἀ. κρέμασθαι, of a bat, Trypho Trop.1.4. 2 not capable of inversion, Procl.Inst.44.
German (Pape)
[Seite 225] = ἀνεπίστρεπτος, Sp.; auch adv., Herodian. 7. 10, 7.