1. Wildly frenzied and out of control
   "berserk with grief"; "a berserk worker smashing windows";
   - amuck, amok

1. One of the ancient Norse warriors legendary for fighting with reckless savagery and insane fury
   "The berserk charged into battle without armour, consumed by battle rage";
   - berserker

Derived forms: berserks

See also: agitated

Type of: Norse, Scandinavian

Encyclopedia: Berserk