ignaro
From LSJ
ἀμήχανον δὲ παντὸς ἀνδρὸς ἐκμαθεῖν ψυχήν τε καὶ φρόνημα καὶ γνώμην, πρὶν ἂν ἀρχαῖς τε καὶ νόμοισιν ἐντριβὴς φανῇ → hard it is to learn the mind of any mortal or the heart, 'till he be tried in chief authority | it is impossible to know fully any man's character, will, or judgment, until he has been proved by the test of rule and law-giving
Spanish > Greek
ἀναλφάβητος, ἀπείρων, ἀγνώς, ἀπευθής, ἄϊδρος, ἀβακήμων, ἀμάθητος, ἄϊδρις, ἀμαθής, ἀγραμματίκευτος, ἀνεπιστήμων, ἀπεπιστήμων, ἄσοφος, ἀϊδρήεις, ἀδίδακτος, ἀνεννόητος, ἄπειρος, ἀποφώλιος, ἀϊδής, ἀγνώμων, ἄβαξ, ἀκατήχητος, ἀπερισάλπιγκτος, ἀπεριήχητος, ἀφιλόσοφος, ἀνήκοος, ἀπείρητος, βεκκεσέληνος, ἀκέραιος, ἀδαής, ἀκύκλιος