1 haywire | Definition of haywire
hay·​wire | \ ˈhā-ˌwī(-ə)r How to pronounce haywire (audio) \

Definition of haywire

1 : being out of order or having gone wrong the radio went haywire
2 : emotionally or mentally upset or out of control : crazy is going haywire with grief

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Synonyms & Antonyms for haywire

Synonyms

balmy, barmy [chiefly British], bats, batty, bedlam, bonkers, brainsick, bughouse [slang], certifiable, crackbrained, cracked, crackers, crackpot, cranky [dialect], crazed, crazy, cuckoo, daffy, daft, demented, deranged, fruity [slang], gaga, insane, kooky (also kookie), loco [slang], loony (also looney), loony tunes (or looney tunes), lunatic, mad, maniacal (also maniac), mental, meshuga (or meshugge), moonstruck, non compos mentis, nuts, nutty, psycho, psychotic, scatty [chiefly British], screwy, unbalanced, unhinged, unsound, wacko (also whacko), wacky (also whacky), wud [chiefly Scottish]

Antonyms

balanced, compos mentis, sane, sound, uncrazy

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Did You Know?

The wire used in baling hay - haywire - is often used in makeshift repairs. This hurried and temporary use of haywire gave rise to the adjective haywire. When the adjective was first used in the early 20th century, it was primarily found in the phrase haywire outfit, which originally denoted a poorly equipped group of loggers and then anything that was flimsy or patched together. This led to a "hastily patched-up" sense, which, in turn, gave us the more commonly used meaning, "being out of order or having gone wrong." The "crazy" sense of haywire may have been suggested by the difficulty of handling the springy wire, its tendency to get tangled around legs, or the disorderly appearance of the temporary repair jobs for which it was used.

Examples of haywire in a Sentence

Recent Examples on the Web

The findings, published Tuesday in the medical journal Nature Communications, suggest that disrupting the stomach's delicate balance of acids and enzymes may cause our immune systems to go haywire, triggering allergies that didn't previously exist. Arman Azad, CNN, "Your heartburn drugs may be giving you allergies, study suggests," 30 July 2019 Andrea Bechert’s superb set looks like IKEA modular shelving gone haywire — a tall jumble of cubbies filled with books, reel-to-real recorders, file boxes and other storage solutions. Sam Hurwitt, The Mercury News, "Review: Delightful ‘Language Archive’ finds TheatreWorks on a roll," 15 July 2019 In the places with lots of jobs, primarily coastal cities, the real estate market has gone absolutely haywire. Alexis C. Madrigal, The Atlantic, "Why Housing Policy Feels Like Generational Warfare," 13 June 2019 Things go haywire from there, with Sach’s new set of guildines, the Paradox Bullets, to guide Ruscha. Steff Yotka, Vogue, "Tom Sachs Unveils His Nike Mars Yard Overshoe Collaboration in His New Film “Paradox Bullets”," 6 Oct. 2018 Yet — and here’s the subtlety in their work — these nonunique extensions of space-time don’t mean that Einstein’s equations go haywire beyond the horizon. Quanta Magazine, "Mathematicians Disprove Conjecture Made to Save Black Holes," 17 May 2018 So when some of the X-Men — the franchises are related — report that a young mutant (Julian Dennison, of Hunt for the Wilderpeople) has gone dangerously haywire, Deadpool swears to protect him. Gary Thompson, Philly.com, "'Deadpool 2': An offbeat action comedy with legs. Gross, little baby legs," 16 May 2018 When the speediest planet goes retrograde, these areas of our lives have the tendency to go haywire. Erika W. Smith, refinery29.com, "How To Survive This Month's Mercury Retrograde," 5 July 2019 The human body goes haywire when hurled into space and away from the familiar environment of the Earth's surface. Anchorage Daily News, "What the Space Age taught us: Earth is the best of all possible worlds," 23 June 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'haywire.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of haywire

1905, in the meaning defined at sense 1

History and Etymology for haywire

from the use of baling wire for makeshift repairs

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More Definitions for haywire

haywire

adjective

English Language Learners Definition of haywire

informal : not working properly

haywire

adjective
hay·​wire | \ ˈhā-ˌwīr How to pronounce haywire (audio) \