- dementia; insanity; lunacy
- great anger
- great folly
- wild excitement
- Archaic rabies
- The condition of being mentally deranged.
- Great folly: It was sheer madness to attempt the drive during a blizzard.
- Enthusiasm; excitement: the madness of Mardi Gras.
- Archaic Fury; rage.
(countable and uncountable, plural madnesses)
mad +"Ž -ness