What is fanatical definition?

Fanatical is an adjective that describes a person or a group that has extreme, often irrational, enthusiasm or belief in something. A fanatical person may be passionately devoted to a particular cause, idea, religion, or sports team and may go to great lengths to defend or promote it. Fanaticism can sometimes lead to extremism, violence, and intolerance of opposing views.

The word "fanatical" can also be used to describe strong or excessive interest or devotion to a hobby or interest, such as being a fanatical collector of stamps or baseball cards.

Overall, the term "fanatical" carries a connotation of intense, almost obsessive, zealotry towards a specific subject or cause, and is often used in a negative context to describe behavior or beliefs that are considered extreme or unreasonable.