👉 Fastidiosity is a psychological phenomenon characterized by an excessive or over-the-top enthusiasm for certain pursuits, such as sports, hobbies, or social gatherings. This can lead to behavior that is overly enthusiastic and unattainable, often causing discomfort or frustration among others around them. Fastidiosity can also be seen in individuals who are excessively interested in something, leading to obsessive behaviors and a lack of self-control.