опрометчиво

From LSJ

τό γε μὴν ἀόργητον ἀνδρός ἐστι σοφοῦ → and to be able also to subdue anger is the part of a wise man

Source

Russian > Greek

ἄκριτος, ἀνεπιλογίστως, ἀκρίτως, προπετῶς