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 …

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

insanity, in criminal law, condition of mental disorder or mental defect that relieves persons of criminal responsibility for their conduct.

Discover everything about the word "INSANITY" in English: meanings, translations, synonyms, pronunciations, examples, and grammar insights - all in one comprehensive guide.

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

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

Nov 1, 2025 · But the bed-side of Lady Marchmont had a darker lesson than the grave, the ravings of insanity revealed the fiery world of that beating and passionate heart. Ethel could …

insanity, n. meanings, etymology, pronunciation and more in the Oxford English Dictionary