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Noun: insanity  in'sa-ni-tee
  1. Relatively permanent disorder of the mind
    "he lived on a knife-edge between genius and insanity"

Derived forms: insanities

See also: insane

Type of: mental disease, mental illness, psychopathy

Antonym: sanity

Encyclopedia: Insanity

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ins and outs
insalubrious
insalubriousness
insalubrity
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insatiability
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insatiableness
insatiably
insatiate
inscribe
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inscription