onwillekeurig
From LSJ
ὥστε ὁ βίος, ὢν καὶ νῦν χαλεπός, εἰς τὸν χρόνον ἐκεῖνον ἀβίωτος γίγνοιτ' ἂν τὸ παράπαν → and so life, which is hard enough now, would then become absolutely unendurable
Dutch > Greek
ἀβουλήτως, ἀθελήτως, ἀκουσίως, ἄκως, ἀνεθελήτως, ἀπροαιρέτως, λαθραίως