credulous
From LSJ
Τὸ νικᾶν αὐτὸν αὑτὸν πασῶν νικῶν πρώτη τε καὶ ἀρίστη. Τὸ δὲ ἡττᾶσθαι αὐτὸν ὑφ' ἑαυτοῦ πάντων αἴσχιστόν τε ἅμα καὶ κάκιστον. → Τo conquer yourself is the first and best victory of all, while to be conquered by yourself is of all the most shameful as well as evil
English > Greek (Woodhouse)
adjective
easily believing: εὔπιστος, εὐπαράγωγος, πιθανός
soon persuaded: ταχυπειθής
disposed to trust: πιστευτικός
easy to deceive: P. εὐεξαπάτητος, εὐαπάτητος; see guileless.