noun
- the state of being mad; insanity.
- senseless folly: It is sheer madness to speak as you do.
- frenzy; rage.
- intense excitement or enthusiasm.
noun
- insanity; lunacy
- extreme anger, excitement, or foolishness
- a nontechnical word for rabies
n.late 14c., “insanity, dementia; rash or irrational conduct,” from mad (adj.) + -ness. Sense of “foolishness” is from early 15c. n.
- The quality or condition of being insane.
see method in one’s madness.