ἀκαταληκτικῶς
From LSJ
καὶ παρὰ δύναμιν τολμηταὶ καὶ παρὰ γνώμην κινδυνευταὶ καὶ ἐν τοῖς δεινοῖς εὐέλπιδες → they are bold beyond their strength, venturesome beyond their better judgment, and sanguine in the face of dangers
Spanish (DGE)
adv. indefinidamente τὸ περὶ ταῦτ' ἀκαταληκτικῶς ἔχειν Arr.Epict.2.23.46.
