ἀδηρίτως
From LSJ
Τὸ νικᾶν αὐτὸν αὑτὸν πασῶν νικῶν πρώτη τε καὶ ἀρίστη. Τὸ δὲ ἡττᾶσθαι αὐτὸν ὑφ' ἑαυτοῦ πάντων αἴσχιστόν τε ἅμα καὶ κάκιστον. → Τo conquer yourself is the first and best victory of all, while to be conquered by yourself is of all the most shameful as well as evil
Russian (Dvoretsky)
ἀδηρίτως:
1 без спора, без препятствий (τὴν λείαν περισύρειν Polyb.);
2 бесспорно (ὁ κρείττων ἀ. δύναμις Plut.).