ἀδαμαστί
From LSJ
ἤ με φίλει καθαρὸν θέμενος νόον, ἤ μ' ἀποειπών ἐχθαιρ' ἀμφαδίην νεῖκος ἀειράμενος → either love me with a pure heart, or reject and hate me, and openly pick a fight
English (LSJ)
Adv. A unconquerably, Suid.
Greek (Liddell-Scott)
ἀδᾰμαστί: ἐπίρρ. ἀκαταπονήτως, Σουΐδ.
Spanish (DGE)
adv. de manera indomable Sud.