Mad"ness, n. [From Mad, a.]
1.
The condition of being mad; insanity; lunacy.
2.
Frenzy; ungovernable rage; extreme folly.
Syn. -- Insanity; distraction; derangement; craziness; lunacy; mania; frenzy; franticness; rage; aberration; alienation; monomania. See Insanity.
© Webster 1913.