plural fanatics
1
: a person who is very enthusiastic about something
I became a boating fanatic.
2
disapproving
: someone who has extreme ideas about politics, religion, etc.
a religious fanatic [=extremist]
Cite this Entry
“Fanatic.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/fanatic. Accessed 20 Jun. 2026.
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