1. too ready to believe things; easily deceived or tricked

Examples

• The credulous tourists believed the fake story about the haunted castle.
• She was too credulous and fell for the online scam.
• His credulous nature made him an easy target for con artists.
• The credulous audience gasped at every magic trick.
• Don’t be so credulous about everything you read on social media.
• The credulous child believed his older brother’s tall tales.