superfan

/ˈsupərˌfæn/
noun
  1. An extremely enthusiastic and devoted fan of a person, team, band, or activity.
    • My brother is a superfan of the local soccer team and never misses a game.
    • She's a superfan of that singer and owns every album he's ever made.
    • The comic book superfan dressed up as his favorite character for the convention.
Antonyms
What does "superfan" mean? | whatsthatwordmean | whatsthatwordmean