бесхитростно
From LSJ
αἱ δὲ χολωσάμεναι πηρὸν θέσαν → but they in their wrath maimed him, but they in their wrath made him helpless, but they in their wrath made him blind
Russian > Greek
ἀπανούργως, ἀπανουργεύτως, ἀμαθῶς, ἀκατασκεύως, ἀνεπιτεχνήτως, αὐθεκάστως
