Insanity | Mean of insanity in English Dictionary

/ɪnˈsænəti/

• Noun
• severe mental illness
1. She was found not guilty by reason of insanity.
2. temporary insanity
• something that is very foolish or unreasonable
1. His friends thought his decision to quit his job was pure insanity.
2. Please, no more violence. It's time to stop this insanity.
3. the insanities of modern life