👉 Undelusiveness is a concept in psychology that refers to an inability to understand or appreciate someone else's feelings, thoughts, or actions. It can be seen as a lack of empathy or understanding, and it often arises from negative experiences such as being hurt or misunderstood by another person. Undelusiveness can occur in various forms, including but not limited to, the inability to recognize when someone is using their words or actions to deceive, or the tendency to overlook or misunderstand others' emotions.