👉 Insidiousness is a concept in psychology that describes how individuals or groups perceive and react to certain situations, often involving fear, anxiety, and paranoia. It can be defined as a deep-seated fear of something that is not necessarily real, but which seems to be causing distress or discomfort. In essence, insidiousness involves an individual's belief that they are being watched or followed by someone who is not actually in danger, even if the person acting out of this fear is not. This fear