ἀμετάστροφος
From LSJ
Περὶ τοῦ ἐπέκεινα τοῦ νοῦ κατὰ μὲν νόησιν πολλὰ λέγεται, θεωρεῖται δὲ ἀνοησίᾳ κρείττονι νοήσεως → On the subject of that which is beyond intellect, many statements are made on the basis of intellection, but it may be immediately cognised only by means of a non-intellection superior to intellection
English (LSJ)
ον,
A not to be turned round, unalterable, Pl.R.620e, Lg.960c.
German (Pape)
[Seite 123] nicht umzukehren, unabänderlich, Plat. Rep. X, 620 e; σκληρὸν καὶ ἀμ. Crat. 407 d; Sp. – Comparat., Epin. 982 c.
Greek (Liddell-Scott)
ἀμετάστροφος: -ον, ὁ μὴ μεταστρεφόμενος, ἀμετάβλητος, ἀναλλοίωτος, Πλάτ. Πολ. 620Ε. Νόμ. 920C. - Ἐπίρρ. -φως Ἐπιφάν.