Definition of crazy in English:



  • 1Mad, especially as manifested in wild or aggressive behaviour.

    ‘Stella went crazy and assaulted a visitor’
    ‘a crazy look’
    • ‘Everyone thought he went crazy, thought he was a madman.’
    • ‘You would have to be totally crazy to take it if you knew beforehand what could happen.’
    • ‘Did anyone tell you you were crazy to be running around a desert battlefield at your age?’
    • ‘Some would call you crazy to do what you did, fighting like a madman.’
    • ‘Maybe I was going completely crazy, which I think I was.’
    • ‘Most people thought Lincoln was crazy to fight a civil war where 620,000 people died in the North and South and the economy was destroyed.’
    • ‘Though a sad, sick fan also went crazy and assaulted the referee.’
    • ‘Anyone would be crazy to be out on these roads on a bike.’
    • ‘About a year and a half after the marriage broke up, things started to get bad and I sort of lost it… I went crazy.’
    • ‘The fact is, you'd have to be crazy to want to drive in central London, and it's been that way for 20 years or more.’
    • ‘But I might be totally crazy, right?’
    • ‘They start by telling you the man was crazy or deranged and conclude by saying he was a liar.’
    • ‘I must be crazy to think that I'd be safe from mosquitoes in my own bathroom.’
    • ‘A person would have to be crazy to suggest that it is.’
    • ‘You'd have to be crazy to bring such obvious karmic repercussions down on yourself.’
    • ‘So people thought we were crazy to be dancing on the middle of the road.’
    • ‘So while he comes out looking like the hapless victim of wilful misinterpretation, Carol is portrayed as mentally fragile and misguided, if not downright crazy.’
    • ‘He said his 34-year-old nephew was like a son to him, but ‘this stupid, foolish, crazy act of murder’ has taken him away.’
    • ‘He said that he ‘just went a little bit crazy, mental.’’
    • ‘He looked at me as if I were just too crazy to be let out in public.’
    mad, insane, out of one's mind, deranged, demented, not in one's right mind, crazed, lunatic, non compos mentis, unbalanced, unhinged, unstable, disturbed, distracted, mad as a hatter, mad as a march hare, stark mad
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    1. 1.1Extremely angry.
      ‘the noise was driving me crazy’
      • ‘I have stopped doing that to her because I'm driving her crazy.’
      • ‘With the technology that's come down, it is driving us crazy.’
      • ‘He hasn't said much to her since, and it's driving her crazy.’
      • ‘I clean them carefully but the itch is driving me crazy.’
      • ‘But this job is unbearable and is really driving me crazy.’
      • ‘My private health insurance policy is driving me crazy!’
      • ‘Nowadays, rampant adaptations of movies and TV series are driving me crazy.’
      • ‘And at the end of my two month's stay it was driving me crazy.’
      • ‘Something is wrong with the photo site, and it is driving us crazy!’
      • ‘All those moments with Crystal were driving him crazy.’
      • ‘He was driving her crazy acting like a stubborn child.’
      • ‘Some of them are driving me crazy and I worry that I am becoming like teachers I had at school who just couldn't deal with certain classes.’
      • ‘It made me want to say, ‘Hey, Charlotte, you're driving him crazy, he's a man, give him a break.’’
      • ‘Joe decided that he had to get his hair cut while we were on vacation, because it was ‘too long,’ and therefore driving him crazy.’
      • ‘The installation went smoothly, but I'm getting these small reoccurring outages that are driving me crazy.’
      • ‘One of my colleagues asked me, a few hours in to the working day, whether the dripping sound was driving me crazy.’
      • ‘Also she quit her job a while back as it was driving her crazy.’
      • ‘All this talk of the party was driving her crazy.’
      • ‘Is there something about someone you know or work with that is driving you crazy?’
      • ‘This whole thing with Eric is driving me crazy, Heather.’
    2. 1.2Foolish.
      ‘it was crazy to hope that good might come out of this mess’
      • ‘It would be crazy to think of introducing another by-law to supersede one we have not even introduced yet.’
      • ‘People have told me that I'm crazy to do it but if I survive it will be an amazing trip.’
      • ‘Not for the first time, I'm wondering if I'm crazy to be here.’
      • ‘I mean, you'd have to be crazy to stand there facing an oncoming stampede of bison at full-throttle, everybody knows that.’
      • ‘Other lawyers said he was crazy to gamble millions of his firm's hours and resources on what looked like lost causes.’
      • ‘Michele is simply crazy to open her blog like this.’
      • ‘It would be crazy to run down stocks below the level at which they can be quickly replenished.’
      • ‘Maybe I'm crazy to think that people in power should be intelligent enough to conduct interviews and answer questions properly.’
      • ‘I'd be crazy to champion the person who could push me right off the board.’
      • ‘Whatever you think about private or public provision it is crazy to think that any kind of conservation policy can co-exist with free or heavily subsidised water.’
      • ‘Those Brits were crazy to retreat from Dunkirk!’
      • ‘To secular people it seems crazy, the triumph of religion over common sense.’
      • ‘It would be absolutely crazy to go beyond Croke Park.’
      • ‘‘We know it would be crazy to say there should be no economic growth,’ he explained.’
      • ‘She just kinda looked at me as though I was crazy to think she would slide down that thing again.’
      • ‘I'm told that I am crazy to think of moving to a really rural location, miles from the nearest town and the closest hospital.’
      • ‘She laughed again, as if the concept was too crazy to grasp.’
      • ‘I'd be crazy to put myself in a situation where I would feel compromised by my allegiance to the club.’
      • ‘It seems totally crazy to have left a good job in NZ to come here to be together and then have to spend less time ‘together’ than we did when I lived in NZ.’
      • ‘You'd be crazy to get a normal CD-ROM on your machine now.’
      absurd, preposterous, ridiculous, ludicrous, farcical, laughable, risible
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  • 2Extremely enthusiastic.

    ‘I'm crazy about Cindy’
    [in combination] ‘a football-crazy bunch of boys’
    • ‘A few things contribute to why I'm so crazy about working out.’
    • ‘The teacher, he admitted, wasn't crazy about his invention.’
    • ‘Another key reason that I'm crazy about marriage stems from the fact that it truly is a unique relationship, and one to be valued and cherished.’
    • ‘I'm actually not too crazy about how this all happened.’
    • ‘And you were crazy about him, too, once, remember?’
    • ‘I'd never had the experience before of growing disenchanted with a girlfriend who I'd once been so crazy about.’
    • ‘I have two pairs of slippers now, but I'm not crazy about either one.’
    • ‘What's one thing about Mom that you're not crazy about?’
    • ‘I'm not crazy about buying Zack a truck, but I'm willing to go for it.’
    • ‘I don't know if I'm crazy about the idea - I like a consistent look & feel.’
    • ‘I was crazy about children (especially babies) and the ticking got louder.’
    • ‘I like the melody of the acoustic guitar here, but I'm not crazy about the fact that it's acoustic guitar or that it's put with those other instruments.’
    • ‘I'm not so crazy about the evidence of the saltwater.’
    • ‘I am crazy about music and movies and, as a hobby, I am addicted to searching for CDs, VCDs and DVDs in whatever places I can find them.’
    • ‘I am not crazy about the color, but I love the design.’
    • ‘No wonder some kids aren't so crazy about books.’
    • ‘I mean, I knew from his scrapbook he was crazy about motorcycles.’
    • ‘Just like his many fans, his TV family was crazy about him.’
    • ‘As long time readers of this blog know, basketball is the one sport I really am crazy about, college basketball in particular.’
    • ‘She was originally signed strictly as a vocalist but she was not crazy about singing someone else's songs and insisted on having input in the writing process.’
    very enthusiastic, passionate, fanatical, excited
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  • 3(of an angle) appearing absurdly out of place or unlikely.

    ‘the monument leant at a crazy angle’
    • ‘That night, as I closed my eyes to try to sleep, all I could see was the bow of the central hull, pointing at a crazy angle going full-throttle down a wave and accelerating into a wall of water.’
    • ‘Three other blocks are still standing although one is at a crazy angle.’
    • ‘If a player drives in at a crazy angle, let him miss the shot and concentrate on the rebound.’
    • ‘A smaller apartment block lay at a crazy angle, the higher floors collapsed in on lower ones, which had been pulverised.’
    • ‘He leapt again - at the window this time, barely making it shudder as the chair bounced off it at a crazy angle, ballooned out of his hands and almost struck Owen in the head as it glided across the corridor.’
    • ‘The fort they made was a hodgepodge of triangular spaces and crazy roof angles.’
    • ‘He attempted the almost impossible, trying to squeeze the ball in from a crazy angle when really the pass to an attacking colleague was the only option.’
    • ‘Sweeping shots and crazy angles seem to add to the tense, built-up vibe the movie is trying to get across.’
    • ‘He considered this, but he stifled his reply when he caught sight of a seemingly ordinary pile of rock that rose at a crazy angle out of the ground.’
    • ‘Josie was wearing a floor long deep burgundy dress, her then blue hair pinned up at various crazy angles.’
    • ‘With a firm twist of her body, she got herself spiraling toward the ground at a crazy angle.’
    • ‘She bounced it hard off the floor, and it careened off on a crazy angle.’
    • ‘Furniture hung out of shattered windows at crazy angles.’
    • ‘The world spun and I found I was lying on the floor with a dazed guard sprawled across my legs, the whole cab tilting over to the left at a crazy angle.’
    • ‘The nearest vertical post shattered in a cloud of steam, and the tower tilted at a crazy angle, before ponderously toppling on those poor souls beneath it.’
    • ‘The only traces of the towers are a series of steel girders torn into crazy angles and already turning a rusty brown from the moisture coming off the nearby river.’
    • ‘Crows flap across the screen like escapees from an Edgar Allan Poe story, and the local country folk are filmed at crazy angles so they all look like a potential threat.’
    • ‘Her body was crumbling: she was confined to a chair with an osteoporotic spine, and her neck seemed to have collapsed so that her head apparently sprouted from her upper chest at a crazy angle.’
    • ‘The legs were gnarled and twisted, the left one bent at a crazy angle making the beast tip to one side slightly.’
    • ‘As in many Filipino homes, you occasionally see small lizards called geckos emerge from behind the sideboard, darting at crazy angles across the walls.’
    1. 3.1archaic (of a ship or building) full of cracks or flaws; unsound.


North American
  • [as submodifier] Extremely.

    ‘I've been crazy busy’
    • ‘You get free updates, and downloads are crazy fast always!’
    • ‘The company make some nice TVs and they aren't crazy expensive like some brands.’
    • ‘He wouldn't be called El Oso Blanco (The White Bear) if he weren't crazy strong.’
    • ‘So obviously Rich is crazy good at hysterical sharp dialogue.’
    • ‘Beachgoers shuffle back and forth from the bar, and it's crazy crowded.’
    • ‘September is crazy awesome.’
    • ‘This storm isn't crazy strong, but its ability to stir up the ocean and the major metropolitan areas it's hitting have everyone preparing for the worst.’
    • ‘The crazy high level of competition the Huskies have faced has, I fear, warped my view of the team.’
    • ‘Even if he did fight chumps his whole career the knockout ratio is crazy high.’
    • ‘I love their footwear range too, the designs are crazy cool.’
    • ‘The menu isn't crazy big and I'm assuming the business is on the new side.’
    • ‘In some restaurants service is crazy slow.’


North American
  • A mad person.

    ‘keep that crazy away from me’
    • ‘But the their problem is that through an unlucky confluence of events, a group of crazies have taken over, people who do not act, in general, in line with the beliefs of those who voted for them.’
    • ‘And while that might work for certain other crazies running for Congress in ‘safe’ districts, it doesn't bode well for someone running for statewide office.’
    • ‘As an expatriate from the Great Lakes State (and someone born in mid-winter, which I like to think has something to do with it), I am one of those crazies who actually enjoy snowy winters.’
    • ‘He had asked me to house-sit for him, which meant watering the lawn and making sure religious crazies and psycho vampire hunters didn't burn the place down while he was gone.’
    • ‘Fame has brought some unwanted attention: the crazies on the Internet now assail the site from time to time, sometimes with organized campaigns.’
    • ‘True, most of the people there were kooks, crazies.’


  • like crazy

    • 1informal To a great degree; very intensely.

      ‘we are just working like crazy’
      • ‘They paid a lot of money to get this script, and we worked on it like crazy, it's a beautiful script.’
      • ‘The latter are better, but it means that you miss them like crazy.’
      • ‘Colours can be safe, soft and muted, bold and bright or even clash like crazy as long as your wardrobe is new and tailored to your best look and shape.’
      • ‘By this time, alarm bells are buzzing like crazy, and I start to resign myself to the thought that I'm not getting it back.’
      • ‘The guy is bleeding like crazy, but I can't stop until I am sure he's incapacitated.’
      • ‘The kids ran around like crazy, fortified only by burnt Bagel Bites and gallons of soda.’
      • ‘For some reason, that set them both off once more and they started laughing like crazy.’
      • ‘I looked at it instead of studying like crazy for my modern poetry exam.’
      • ‘The forwards spent most of the match running pell-mell into each other and then cheating like crazy at the breakdown.’
      • ‘It's not too funny now but I remember than we had laughed like crazy.’
      energetically, enthusiastically, madly, with a will, for all one is worth, passionately, intensely, ardently, fervently
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      1. 1.1In a very fast or unrestrained way.
        ‘another driver, who was driving like crazy, ran him off the road’
        • ‘He was very hyperactive, going all over the place, running like crazy.’
        • ‘See I have a problem, on stage, alone, singing… my voice shakes like crazy.’
        • ‘By this time, advertisers should be buying like crazy.’
        • ‘May God rain down his blessings in your life like crazy!’
        • ‘I had to run around like crazy to find a free pay phone.’
        • ‘I stood behind the front door fidgeting like crazy.’
        • ‘Everyone started to cheer like crazy, including me!’
        • ‘In either case, his girl is standing there in front of him, moving around like crazy, just being smolderingly sexy.’
        • ‘My bike leaks oil, vibrates like crazy, no handling.’
        • ‘Her jaw went slack for a moment, then she started smiling like crazy.’
        fast, furiously, as fast as possible, hurriedly, quickly, rapidly, speedily, hastily
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Late 16th century (in sense ‘full of cracks’): from craze + -y.