In modern usage, insanity may be found in both senses: you may tell your brother that trying to skateboard while holding onto a car is "insanity" (in which case you mean that it is extremely …

Insanity, madness, lunacy, and craziness are behaviors caused by certain abnormal mental or behavioral patterns. Insanity can manifest as violations of societal norms, including a person …

Contrary to popular belief, insanity isn't defined as doing the same thing over and over and expecting a different result. And, while it is often used to describe certain states of mind, …

Jul 27, 2009 · Insanity is a concept discussed in court to help distinguish guilt from innocence. It's informed by mental health professionals, but the term today is primarily legal, not psychological.

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.

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

If you describe a decision or an action as insanity, you think it is very foolish. [ disapproval ] It was a period of collective insanity, of legalized murder and mayhem.

Insanity is an ongoing state of extreme mental illness, which may cause abnormal or antisocial behaviors. If you bark at cats and meow at dogs, you might suffer from insanity. The noun …

Extreme foolishness or irrationality: "The insanity of sending troops into Russia when European peace looked imminent horrified him" (Mary V. Dearborn). b. Something that is extremely …