Overtrustful is the state of being overly trusting or having too much trust in people or situations. Some synonyms for the word overtrustful include gullible, naive, credulous, and unsuspecting. These words describe individuals who are easily fooled or misled due to their excessive trust in others. Other synonyms for overtrustful include uncritical, unquestioning, and trusting, all of which describe someone who doesn't question the validity of information they receive or the motives of those they interact with. Overtrustful can also be synonymous with vulnerable, as individuals who are too trusting are more susceptible to being taken advantage of or deceived.