crazy
1 of 3adjective
cra·zy ˈkrā-zē 
crazier; craziest
1
a
: full of cracks or flaws : unsound
… they were very crazy, wretched cabins …
Charles Dickens
Charles Dickens b
: crooked, askew
2
a
: not mentally sound : marked by thought or action that lacks reason : insane sense 1b
yelling like a crazy man
—not used technically b(1)
: impractical
a crazy plan
(2)
: erratic
crazy drivers
c
: being out of the ordinary : unusual
a taste for crazy hats
3
a
: distracted with desire or excitement
a thrill-crazy mob
The fans went crazy when their team won the championship.
b
: absurdly fond : infatuated
He's crazy about the girl.
c
: passionately preoccupied : obsessed
crazy about boats
crazily
ˈkrā-zə-lē
adverb craziness
ˈkrā-zē-nəs
noun crazy
2 of 3noun
plural crazies
: one who is or acts crazy
especially : such a one associated with a radical or extremist political cause
… are convinced that Wilson thinks they're rubes, bumpkins, or crazies, and wants to replace them with a legislature full of moderate clones of himself. Fred Barnes
Fred Barnes crazy
3 of 3adverb
: extremely, wildly
crazy good
Synonyms
Adjective
- absurd
- bizarre
- fanciful
- fantastic
- fantastical
- foolish
- insane
- nonsensical
- preposterous
- unreal
- wild
Noun
- bug
- crackbrain
- fool
- fruitcake
- head case
- loon
- loony
- lunatic
- maniac
- nut
- nutcase
- nutter [British slang]
- psycho
- psychopath
- sickie
- sicko
- wacko
- whacko
See all Synonyms & Antonyms 
Example Sentences
Adjective He's been acting kind of crazy lately. There are a lot of crazy drivers on the streets. You are crazy to have paid so much for this car. You would be crazy not to accept their offer! What a crazy thing to do! Noun A bunch of crazies live there. started yelling in the middle of the store like a crazy man Adverb I bought some crazy good stuff there. See More
Recent Examples on the Web Jessica Mathews, Fortune, 12 Sep. 2022 Laverne Cox is crazy in love with the idea that the internet mistook her for Beyoncé at the U.S. Open. Emlyn Travis, EW.com, 30 Aug. 2022 Boyle said that hiring active gang members was crazy. Charles Bethea, The New Yorker, 29 Aug. 2022 So, getting to share it with the fans is gonna be crazy. Stephen Daw, Billboard, 29 July 2022 Next year will be the 10th anniversary, which is crazy to me. Clayton Gutzmore, Variety, 28 July 2022 In that year, the median valuation wasn’t so crazy, but that was also when SoftBank poured billions into WeWork. Jessica Mathews, Fortune, 30 Aug. 2022 This was, perhaps, a sign that Taylor’s approach was just as crazy as Boyle had suggested. Charles Bethea, The New Yorker, 29 Aug. 2022 Making a Beignet Burger is crazy; putting your garnishes in the burger and steaming them to mush while the beignet is fried would just be stupid. al, 26 Aug. 2022 Brian T. Allen, National Review, 2 May 2020 Doyle’s message to stir-crazy, nature-seeking folks: Feel free to hike and enjoy the great outdoors. Ron Kroichick, SFChronicle.com, 25 Apr. 2020 There are four types of winter drivers: plodders, joggers, speeders and crazies. cleveland, 8 Feb. 2020 There are a lot of crazies in the city and a lot of bad guys. Carl Nolte, SFChronicle.com, 11 Jan. 2020 The Crimson Tide’s student section under first-year coach Nate Oats doesn’t have a catchy new nickname yet, but the hardhat wearing Crimson crazies showed up in force for the home team’s gritty 77-74 victory against Kansas State. Joseph Goodman | Jgoodman@al.com, al, 28 Jan. 2020 Please don’t engage with the crazies in the comments. Christina Oehler, Health.com, 15 Nov. 2019 Players marveled at the crowd’s enthusiasm after the game, and Gruden kept his tradition of visiting with the crazies after a Raiders win. Jerry Mcdonald, The Mercury News, 14 Sep. 2019 That’s the same thing that the Dayton, Ohio shooter did…You have fringe crazies on all sides. Bill Lambrecht, ExpressNews.com, 7 Aug. 2019 Washington Post, 13 July 2021 When Teigen and her husband, John Legend, first started trying to have a baby, not getting pregnant felt crazy-making. Jenny Singer, Glamour, 20 Apr. 2021 Then the internet started going crazy over whipping instant coffee and shortcut recipes. Katlyn Moncada, Better Homes & Gardens, 19 May 2020 Of course, Amy's fans are going crazy over the engagement announcement. Kayla Keegan, Good Housekeeping, 20 Sep. 2019 The twitter world is going crazy over this epic pitch by Oliver Drake of the Tampa Bay Rays. Rhett Allain, WIRED, 31 July 2019 While everyone is going crazy over the deals at Amazon for Prime Day right now, Newegg is sneaking through the back door of the bargain basement with its FantasTech sale. Ian Paul, PCWorld, 17 July 2018 The Fake News is going crazy making up false stories and using only unnamed sources (who don’t exist). Ryan Teague Beckwith, Time, 7 June 2018 The Fake News is going crazy making up false stories and using only unnamed sources (who don’t exist). Ryan Teague Beckwith, Time, 7 June 2018 See More
Adjective
Our members are turning into champions for this platform: Our organic growth is crazy. Jessica Mathews, Fortune, 12 Sep. 2022 Laverne Cox is crazy in love with the idea that the internet mistook her for Beyoncé at the U.S. Open. Emlyn Travis, EW.com, 30 Aug. 2022 Boyle said that hiring active gang members was crazy. Charles Bethea, The New Yorker, 29 Aug. 2022 So, getting to share it with the fans is gonna be crazy. Stephen Daw, Billboard, 29 July 2022 Next year will be the 10th anniversary, which is crazy to me. Clayton Gutzmore, Variety, 28 July 2022 In that year, the median valuation wasn’t so crazy, but that was also when SoftBank poured billions into WeWork. Jessica Mathews, Fortune, 30 Aug. 2022 This was, perhaps, a sign that Taylor’s approach was just as crazy as Boyle had suggested. Charles Bethea, The New Yorker, 29 Aug. 2022 Making a Beignet Burger is crazy; putting your garnishes in the burger and steaming them to mush while the beignet is fried would just be stupid. al, 26 Aug. 2022 Noun
The campus crazies demanding safe spaces seem to have polluted the entire culture with fear and anxiety. Brian T. Allen, National Review, 2 May 2020 Doyle’s message to stir-crazy, nature-seeking folks: Feel free to hike and enjoy the great outdoors. Ron Kroichick, SFChronicle.com, 25 Apr. 2020 There are four types of winter drivers: plodders, joggers, speeders and crazies. cleveland, 8 Feb. 2020 There are a lot of crazies in the city and a lot of bad guys. Carl Nolte, SFChronicle.com, 11 Jan. 2020 The Crimson Tide’s student section under first-year coach Nate Oats doesn’t have a catchy new nickname yet, but the hardhat wearing Crimson crazies showed up in force for the home team’s gritty 77-74 victory against Kansas State. Joseph Goodman | Jgoodman@al.com, al, 28 Jan. 2020 Please don’t engage with the crazies in the comments. Christina Oehler, Health.com, 15 Nov. 2019 Players marveled at the crowd’s enthusiasm after the game, and Gruden kept his tradition of visiting with the crazies after a Raiders win. Jerry Mcdonald, The Mercury News, 14 Sep. 2019 That’s the same thing that the Dayton, Ohio shooter did…You have fringe crazies on all sides. Bill Lambrecht, ExpressNews.com, 7 Aug. 2019 Adverb
For a smart woman hyper-alert to the nature of language, Adriaan’s oblique, infrequent text messages create a crazy-making predicament. Washington Post, 13 July 2021 When Teigen and her husband, John Legend, first started trying to have a baby, not getting pregnant felt crazy-making. Jenny Singer, Glamour, 20 Apr. 2021 Then the internet started going crazy over whipping instant coffee and shortcut recipes. Katlyn Moncada, Better Homes & Gardens, 19 May 2020 Of course, Amy's fans are going crazy over the engagement announcement. Kayla Keegan, Good Housekeeping, 20 Sep. 2019 The twitter world is going crazy over this epic pitch by Oliver Drake of the Tampa Bay Rays. Rhett Allain, WIRED, 31 July 2019 While everyone is going crazy over the deals at Amazon for Prime Day right now, Newegg is sneaking through the back door of the bargain basement with its FantasTech sale. Ian Paul, PCWorld, 17 July 2018 The Fake News is going crazy making up false stories and using only unnamed sources (who don’t exist). Ryan Teague Beckwith, Time, 7 June 2018 The Fake News is going crazy making up false stories and using only unnamed sources (who don’t exist). Ryan Teague Beckwith, Time, 7 June 2018 See More Word History
Etymology
Adjective
see craze entry 1
Noun
see craze entry 1
Adverb
see craze entry 1
First Known Use
Adjective
1566, in the meaning defined at sense 1a
Noun
1867, in the meaning defined above
Adverb
1887, in the meaning defined above
Phrases Containing crazy
Kids Definition
crazy
adjective
cra·zy ˈkrā-zē
crazier; craziest
1
: having a severe mental illness : insane
2
: not sensible or logical
a crazy idea
3
: very excited or pleased
They're crazy about their new house.
4
: very annoyed
This song makes me crazy.
like crazy
phrase
as in full blast
with all power or resources being used She studied like crazy hoping for an A. Synonyms & Similar Words
Relevance
- full blast
- all out
- full tilt
- thoroughly
- fully
- completely
- full speed ahead
- tooth and nail
- full steam ahead
- minutely
- totally
- comprehensively
- extremely
- utterly
- exhaustively
- roundly
- to the hilt
- in full career
- detailedly