credulity
krɪˈdjuːlɪti
noun
a tendency to be too ready to believe that something is real or true.
moneylenders prey upon their credulity and inexperience
gullibility,gullibleness,credulousness,naivety,naiveness,blind faith,trustfulness,over-trustfulness,lack of suspicion,innocence,ingenuousness,unworldliness,lack of experience,lack of sophistication,guilelessness,greenness,callowness,childlikeness,simpleness,simplicity,ignorance