ἀκατάμεμπτος
From LSJ
ἔκστασίς τίς ἐστιν ἐν τῇ γενέσει τὸ παρὰ φύσιν τοῦ κατὰ φύσιν → what is contrary to nature is any developmental aberration from what is in accord with nature (Aristotle, On the Heavens 286a19)
Spanish (DGE)
-ον
1 completamente irreprochable, intachable de un difunto SEG 32.928 (Sicilia IV d.C.).
2 adv. -ως de un modo completamente irreprochable ἐμ πᾶσιν ἀκαταμέμπτως ἔχοντα IG 12(7).231 (Amorgos II/I a.C.).