The credulous tourists believed every tall tale told by the street performers.

Her credulousness made her an easy target for scams, but she preferred to trust people rather than live in suspicion.

She listened to every outrageous claim and believed credulously, despite the lack of evidence.

The con artist exploited local credulities to sell fake miracle cures to desperate villagers.

His credulity in the old map led him to search for a treasure that never existed.