ἀκατάσχετος
From LSJ
ὁ δὲ μὴ δυνάμενος κοινωνεῖν ἢ μηδὲν δεόμενος δι' αὐτάρκειαν οὐθὲν μέρος πόλεως, ὥστε ἢ θηρίον ἢ θεός → a man who is incapable of entering into partnership, or who is so self-sufficing that he has no need to do so, is no part of a state, so that he must be either a lower animal or a god | whoever is incapable of associating, or has no need to because of self-sufficiency, is no part of a state; so he is either a beast or a god
English (LSJ)
ον, (κατέχω)
A not to be checked, ὁρμή Hipparch. ap. Stob.4.44.81, cf. Onos.1.3; δάκρυα D.S.17.38; of persons, uncontrollable, Phld.Piet.86, Apollon.Mir.40, Plu.Mar.44. Adv. -τως D.S.17.34, Plu.Cam.37.