brainsick

adjective

brain·​sick ˈbrān-ˌsik 

1

: mentally disordered

Good Lord, what madness rules in brainsick men, / When for so slight and frivolous a cause / Such factious emulations shall arise!

—William Shakespeare

2

: arising from mental disorder

a brainsick frenzy

brainsickly adverb

Synonyms

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

Examples of brainsick in a Sentence

today he is regarded as a brainsick genius who produced some of the greatest paintings in the history of art

Recent Examples on the Web

Lawgivers have wrestled since biblical times with the issues of whether and when brainsick people are morally responsible for bad acts. —Paul Duggan, Washington Post, 4 Sep. 2019

Word History

First Known Use

before the 12th century, in the meaning defined at sense 1