Conceptually, mental insanity also is associated with the biological phenomenon of contagion (that mental illness is infectious) as in the case of copycat suicides. In contemporary usage, …

An oft-quoted bon mot (frequently attributed to Albert Einstein, Benjamin Franklin, or a number of other people who probably never said it) is that insanity may be defined as “doing the same …

INSANITY definition: (not in technical use as a medical diagnosis) the condition of being insane; a derangement of the mind. See examples of insanity used in a sentence.

INSANITY meaning: 1. a very stupid, unreasonable, or dangerous action or situation: 2. the condition of being very…. Learn more.

INSANITY meaning: 1 : severe mental illness the condition of being insane; 2 : something that is very foolish or unreasonable

a form of insanity or dementia praecox that can appear at puberty, characterized by foolish behavior and deterioration of the mental faculties.

insanity - WordReference English dictionary, questions, discussion and forums. All Free.

The condition of being insane; a state of mind that impedes the ability to think, reason, or behave in ways that are considered normal, esp. one caused by mental illness. Also in extended use.

Definition of insanity noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

INSANITY definition: 1. a very stupid, unreasonable, or dangerous action or situation: 2. the condition of being very…. Learn more.