Definition of fanatical in US English:

fanatical

adjective

  • 1Filled with excessive and single-minded zeal.

    ‘fanatical revolutionaries’
    • ‘The fundamentalism of fanatical conviction knows no boundaries; rogues do understand each other.’
    • ‘If they weren't fanatical about Christianity, what would they be fanatical about?’
    • ‘The elimination of all relics of the Hashemites was undertaken with fanatical zeal.’
    • ‘The vast majority of Hitler's fanatical supporters easily transitioned to life in the free world.’
    • ‘He saw Muslims as a cohesive unit, unflinchingly committed to their religion, even fanatical about it.’
    • ‘It is indeed very sad that our country and government tolerates fanatical groups of people that dictate their will upon others.’
    • ‘It's quite worrying that there are people out to kill us, people motivated by fanatical hatred and religious extremism.’
    • ‘The concept of heroism became unthinkable except in relation to fanatical military force.’
    • ‘It's always amused me that some of the most fanatical anti-tobacco activists are also mad keen on legalising dope.’
    • ‘The attempt to act in accordance with a system of ideas is invariably denounced as ideological, fanatical, utopian or millenarian.’
    • ‘She followed Lt. Tod's orders with a zeal that the others joked was fanatical.’
    • ‘But such measures offer no deterrent to a single fanatical suicide attacker.’
    • ‘It very much surprised me about the Americans, as they seem to be fanatical about God and Religion.’
    • ‘Having a fanatical enemy that works for law enforcement can lead to extremely dangerous situations.’
    • ‘The LEJ and other fanatical Sunni groups have a history of sectarian violence in Pakistan.’
    • ‘I think many Christians in the current climate perceive Islam as a religion of fanatical extremists who commit acts of terrorism.’
    • ‘These books are an indictment of uncompromising, fanatical, and utopian ideology.’
    • ‘The village folk take the palm leaf books as the store house of precious occult knowledge and guard them with fanatical zeal.’
    • ‘His father was a French émigré, his mother Catherine Welby, a fanatical Protestant sectarian.’
    • ‘Many have suffered at the hands of the fanatical few.’
    zealous, extremist, extreme, militant, dogmatic, sectarian, bigoted, rabid, maniacal, radical, diehard, activist
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    1. 1.1 Obsessively concerned with something.
      ‘he was fanatical about security at night’
      • ‘The trick, I guess, is not to get too fanatical about getting the accent too accurate because then that becomes a mask.’
      • ‘Becci is fanatical about football and was the first girl at her primary school to play for the boy's team.’
      • ‘There's the urbane family man, charming in company and fanatical about sport.’
      • ‘The keen swimmer and fanatical Rovers fan taught thousands of people, young and old, to swim within the 10m teaching pool.’
      • ‘As a lot of people know already, she's a really obsessed, fanatical football fan.’
      • ‘Mothers were fanatical about making sure their homes and family were decent.’
      • ‘Those of you familiar with my column know I'm pretty fanatical about security.’
      • ‘Every country in the world I've been to, there are groups of people that are really fanatical about saving the shark.’
      • ‘Jean Claude is also a lover of animals, and when he does something, he is fanatical about it.’
      • ‘Mr Able usually wore a hat and had long grey hair and was fanatical about music, especially The Beatles.’
      • ‘The people there are fanatical about what they do, and until that wears off they will be tough to beat.’
      • ‘In fact, she had become almost fanatical about raising her and taking care of everything.’
      • ‘They are rather fanatical about lengthening their own lives and fending off death indefinitely.’
      • ‘A short man with graying hair and tinted glasses, Ecclestone is fanatical about neatness.’
      • ‘Scrupulous research and a fanatical concern for historical accuracy is a demonstration of Weir's seriousness.’
      • ‘Méchain was fanatical about accuracy and, as we shall soon see, these measurements would cause him anguish for the rest of his life.’
      • ‘The Irish are fanatical about racing, extremely knowledgeable and are always on the lookout for an equine hero.’
      • ‘We bring to our efforts a fanatical obsession with quality and exclusivity.’
      • ‘Prime Minister John Howard describes himself as fanatical about sport.’
      • ‘I used to be totally fanatical about dates, but then I've slowly gone off those and now I just eat raisins and prunes.’
      enthusiastic, eager, keen, fervent, ardent, fervid, passionate, devoted, dedicated
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Pronunciation

fanatical

/fəˈnadək(ə)l//fəˈnædək(ə)l/