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Crazy person - synonyms or related words

nutjob

noun

Americaninformal an insulting word for someone who you think is crazy

madman

noun

an insulting word for a man who you think is behaving in a crazy way

lunatic

noun

someone who behaves in an extreme or dangerous way

madwoman

noun

an insulting word for a woman who you think is behaving in a crazy way

oddity

noun

someone or something that seems strange or unusual

eccentric

noun

someone who behaves in an eccentric way

weirdo

noun

informal someone who behaves in a way that seems strange

oddball

noun

informal someone whose behaviour is strange or unusual

headcase

noun

informal an insulting word for someone who you think is crazy

screwball

noun

informal someone who behaves in a way that seems strange or slightly crazy. This word is sometimes used as an insult.

Open Dictionary

freshet

a rise in the level of a stream or river

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