refractory
From LSJ
δυνατὰ δὲ οἱ προύχοντες πράσσουσι καὶ οἱ ἀσθενεῖς ξυγχωροῦσιν → the strong do what they will; the weak do what they must | the strong do what they can and the weak suffer what they must | they that have odds of power exact as much as they can, and the weak yield to such conditions as they can get
English > Greek (Woodhouse)
adjective
obstinate: P. and V. αὐθάδης; see also disobedient.
unmanageable: P. and V. ἄπορος.