ἀπρόστατος
From LSJ
ὃν οὐ τύπτει λόγος οὐδὲ ῥάβδος → if words don't get through, neither a beating will | if the carrot doesn't work, the stick will not work either | whom words do not strike, neither does the rod
English (LSJ)
ἀπρόστατον, = ἀπροστάτευτος (without a leader, without a guide), dub. in DC. 78.20.
Spanish (DGE)
-ον de pers. que no tiene jefe o guía D.C.78.20.1.