Credulous people can often be easy targets for scams.
Kara took the joke seriously because she was too credulous to understand the sarcasm.
Some people are so credulous that they would believe anything.
Since she always tries to find the best in people, Jen can be described as credulous.
Napier lived, too, not only in a wild country, which was in a lawless and unsettled state during most of his life, but also in a credulous and superstitious age.
Young children are very credulous with anything that a respected adult says.
At the head of the opposition was Ferdinand, the heir to the throne, as insignificant as his rival, but endowed with all good qualities by the credulous favor of the people.
But if he was credulous of marvels, he was careful to insist on good evidence for what he accepted as Christ's own teaching, in the face of current unauthorized views.