berserker, berserk -- (one of the ancient Norse warriors legendary for working themselves into a frenzy before a battle and fighting with reckless savagery and insane fury)
Overview of adj berserk
The adj berserk has 1 sense
amuck, amok, berserk, demoniac, demoniacal, possessed -- (frenzied as if possessed by a demon; "the soldier was completely amuck"; "berserk with grief"; "a berserk worker smashing windows")