What is the meaning of madness?

noun

• Obsolete terms for legal insanity.
  • synonyms: lunacy, insaneness
• An acute viral disease of the nervous system of warm-blooded animals (usually transmitted by the bite of a rabid animal); rabies is fatal if the virus reaches the brain.
  • synonyms: rabies, hydrophobia, lyssa
• A feeling of intense anger.
  • usage: "hell hath no fury like a woman scorned"; "his face turned red with rage"
  • synonyms: fury, rage
• The quality of being rash and foolish.
  • usage: "trying to drive through a blizzard is the height of folly"; "adjusting to an insane society is total foolishness"
  • synonyms: folly, foolishness, craziness
• Unrestrained excitement or enthusiasm.
  • usage: "poetry is a sort of divine madness"
  • synonyms: rabidity, rabidness