Madness (n.) is a diagnosis pronounced by officials destitute of evidence that they themselves are sane.
Madness (n.) is being at odds with the majority... in short, unusual.
Madness (n.) is not conforming to standards of thought, speech, and action derived by the conformants from study of themselves.
Madness (n.) is said of one affected with a high degree of intellectual independence... at odds with the majority... in short, unusual.
Madness (n.) is the state of being at odds with the majority and having a high degree of intellectual independence.
Madness (n.) is a person pronounced mad by officials destitute of evidence that they themselves are sane.