ἄλημπτος
From LSJ
ὁ κόσμος ἀλλοίωσις, ὁ βίος ὑπόληψις → the universe is flux, life is opinion | the universe is transformation: life is opinion | the universe is change, life is a fleeting impression | the universe—mutation: life—opinion
Spanish (DGE)
-ον
inasible, inalcanzable τὸ ζητούμενον ἄλημπτον ὁ λόγος ἔδειξεν Ps.Caes.191.4.