avid

This word carries a high-energy charge, suggesting a level of passion that borders on obsession. It is most frequently used to describe hobbies, intellectual pursuits, or habits where the person is not just a participant, but a dedicated enthusiast who seeks out every possible opportunity to engage with the activity. While it is generally positive, it can occasionally lean toward a sense of greed or insatiable desire when used in older or more formal contexts. In modern usage, however, it serves as a strong intensifier for a person's commitment to a specific interest, distinguishing a casual fan from a true devotee.