Which term describes someone who is easily deceived?

The term that describes someone who is easily deceived is "gullible." This adjective captures the essence of a person who readily believes or accepts information, often lacking skepticism or discernment. Such a person may fall prey to deception, being overly trusting or naive about the motives of others.

In this context, "cynical" refers to a person who tends to believe that people are motivated purely by self-interest and often questions the sincerity of others, which contrasts with an ability to be deceived. "Meticulous" describes someone who pays great attention to detail and is precise, which doesn't relate to being deceived or trusting. "Wily" characterizes a person who is skilled at gaining an advantage, often through tricky or deceitful means, indicating a cleverness that is opposite to being easily fooled. Thus, "gullible" is the term that most accurately aligns with the idea of someone who is easily deceived.