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Synonyms

nutcase

American  
[nuht-keys] / ˈnʌtˌkeɪs /
Or nut case

noun

Slang.
  1. a crazy or eccentric person; nutjob; nut.


nutcase British  
/ ˈnʌtˌkeɪs /

noun

  1. slang an insane or very foolish person

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of nutcase

First recorded in 1955–60; nut ( def. ) + case 1 ( def. )

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

On Wednesday multiple news outlets revealed the purported headliner of "Borat Subsequent Moviefilm" to be none other than Rudy Giuliani, President Donald Trump's trusted lawyer and cable news's favorite nutcase.

From Salon • Oct. 23, 2020

Mia is a sweet girl, but her mother is a nutcase.

From Slate • Dec. 5, 2019

And they presented their theory after literally hundreds of books had been written about different nutcase theories, and people understandably said, “Well, here’s another one.”

From The New Yorker • Jun. 24, 2016

"You're presenting an unbalanced view of a nutcase who has sent all these texts."

From BBC • Jan. 12, 2015

And he wasn’t a nutcase, he wasn’t a sociopath, he wasn’t an out-cast.

From "Into the Wild" by Jon Krakauer