Definition of Fanatical

having an extreme, irrational zeal or enthusiasm for a specific cause

Examples of Fanatical in a sentence

Richard is fanatical about his beliefs, preaching to anyone that will listen.  

We were afraid of being attacked by a fanatical jihadist.  

Becky convinced her son to escape from the fanatical cult.  

When Jason was a teenager, he was a fanatical baseball fan.  

The fanatical fan ran wildly around the stadium, shouting his team’s name.  

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