brain·​sick ˈbrān-ˌsik How to pronounce brainsick (audio)
: 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
: arising from mental disorder
a brainsick frenzy
brainsickly adverb

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

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'brainsick.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

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

Time Traveler
The first known use of brainsick was before the 12th century

Dictionary Entries Near brainsick

Cite this Entry

“Brainsick.” Dictionary, Merriam-Webster, Accessed 8 Dec. 2023.

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