What is another word for insane?

Need synonyms for insane? Here's a list of words from our thesaurus that you can use instead.

In a state of mind which prevents normal perception, behaviour, or social interaction; seriously mentally ill
“And anyway, why would we consider Nietzsche's writings the product of an insane mind?”
Stupidly irresponsible
“In these circumstances it is insane and illogical that we persist with youth football in darkest winter.”
Extremely annoyed
“If the Brewers didn't want a fight, Gomez shouldn't have posed and then shouldn't have gone insane when Cole called him out on it.”
Going beyond a normal or acceptable limit in degree or amount
“… wanted an insane amount of money to paint our house.”
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