Fanatical

/fəˈnætɪkəl/

Meaning & Definition

adjective
excessively enthusiastic or zealous in a particular cause or belief.
His fanatical support for the team made him travel across the country to see every game.
marked by excessive enthusiasm or intense devotion.
The fanatical followers of the cult would do anything their leader commanded.
showing an extreme, irrational commitment to a belief.
Her fanatical approach to diet and exercise left little room for anything else in her life.

Etymology

Derives from the Latin 'fanaticus', meaning 'inspired by a deity, frantic, frenzied', from 'fanum' meaning 'temple'.

Common Phrases and Expressions

fanatical about something:
Exhibiting excessive enthusiasm or zeal for a particular interest.
fanatical supporters:
People who are extremely devoted to a person, team, or cause.
fanatical in belief:
Holding an intense and unyielding belief.

Related Words

Slang Meanings

Over-the-top supporter
He's such an over-the-top supporter of that brand, it's almost fanatical.
Die-hard fan
She's a die-hard fan of that band, always attending their concerts.