ἀπρόθετος
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
I no fijado de antemano al ἀγορασίαι καὶ οἱ γάμοι Heph.Astr.Epit.1.31.47.
II adv. -ως maquinalmente, involuntariamente συμβαίνειν ἀ. Plb.9.12.6, Ephr.Syr.3.55B.