gullibly

This adverb carries a strong negative connotation, implying a lack of critical judgment or a naive vulnerability. It suggests that the person being described is not just mistaken, but is easily manipulated due to an inherent trait of over-trusting others.

Because it describes a personality flaw or a state of mental openness to deception, it is frequently used in narratives to highlight a character's innocence or foolishness. It is rarely used in a positive sense, as being "gullible" is generally viewed as a weakness in social or professional interactions.