Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun berserker

1 sense of berserker

Sense 1
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)
       => Scandinavian, Norse, Northman -- (an inhabitant of Scandinavia)

Antonyms of adj berserk

1 sense of berserk

Sense 1
amuck, amok, berserk, demoniac, demoniacal, possessed (predicate) -- (frenzied as if possessed by a demon; "the soldier was completely amuck"; "berserk with grief"; "a berserk worker smashing windows")

INDIRECT (VIA insane) -> sane -- (mentally healthy; free from mental disorder; "appears to be completely sane")

Similarity of adj berserk

1 sense of berserk

Sense 1
amuck, amok, berserk, demoniac, demoniacal, possessed (predicate) -- (frenzied as if possessed by a demon; "the soldier was completely amuck"; "berserk with grief"; "a berserk worker smashing windows")
       => insane (vs. sane) -- (afflicted with or characteristic of mental derangement; "was declared insane"; "insane laughter")