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Synonyms

berserk

American  
[ber-surk, -zurk] / bərˈsɜrk, -ˈzɜrk /

adjective

  1. violently or destructively frenzied; wild; crazed; deranged.

    He suddenly went berserk.

    Synonyms:
    lunatic, demented, rabid, maniacal, mad, violent
    Antonyms:
    calm, rational

noun

  1. (sometimes initial capital letter) Also berserker. an ancient Norse warrior who fought with frenzied rage in battle, possibly induced by eating hallucinogenic mushrooms.

berserk British  
/ bəˈzɜːk, -ˈsɜːk /

adjective

  1. frenziedly violent or destructive (esp in the phrase go berserk )

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

noun

  1. Also called: berserker.  a member of a class of ancient Norse warriors who worked themselves into a frenzy before battle and fought with insane fury and courage

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Usage

What does berserk mean? Berserk describes violent, destructive, or deranged behavior. Berserk frequently describes someone who is acting wild, crazy, or deranged. It is commonly used with forms of the verb go, as in go berserk or went berserk, meaning someone suddenly erupted into a frenzy of angry or violent behavior. In Norse and Germanic folklore, a berserk (or berserker) is a warrior who worships the Norse god Odin, fighting savagely and without control, possibly from eating hallucinogenic mushrooms. They were said to wear shirts made of bearskin (see “Where does berserk come from?” below) and were often the villains in Norse sagas. Today, this sense is used figuratively to define any person who is prone to acting out angrily, especially without cause. Example: I told him that his music wasn’t even that great, and he went berserk.

Other Word Forms

Etymology

Origin of berserk

1865–70; < Old Norse berserkr, equivalent to ber- (either *ber-, base of bjǫrn bear 2 or berr bare 1 ) + serkr sark, shirt, armor

Explanation

Berserk is another way of saying deranged, destructively violent, or unrestrained — like a wailing toddler ravaging the playroom when he's hopped up on sugar and long overdue for a nap. Famous writer and runner George Sheehan said, “If you want to win anything – a race, your self, your life – you have to go a little berserk.” He must have been thinking of the fierce Norse warriors called berserkrs that inspired the adjective we know to mean "crazed." Those warriors were feared to be fighters of superhuman strength who wore bear skins and chewed madly at their iron shields. It's safe to say most of their opponents ran away crying.

Keep Reading on Vocabulary.com

Vocabulary lists containing berserk

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Last week, DHS said a group sometimes known as Dragonfly or Berserk Bear was targeting these systems again.

From Washington Post • Oct. 26, 2020

He repeatedly referenced a vampire character from "Berserk," Nosferatu Zodd, and tweeted an image of Zodd.

From Salon • Jul. 22, 2018

Ramos also identified with "Berserk" characters on several other occasions.

From Salon • Jul. 22, 2018

Bearded, massive, gaunt, propelling himself vigorously on heavy crutches like a "maimed Berserk," Henley made a spectacular impression.

From Time Magazine Archive

We have come to inquire after the local Berserk.

From A Diversity of Creatures by Kipling, Rudyard

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