madness
mad-ness
noun
Extremely foolish or chaotic behaviour; utter folly.
"The whole scheme was sheer madness."
noun
The state of being severely mentally ill; insanity.
"He slowly descended into madness."
Thesaurus
Synonyms: lunacy, insaneness, folly, craziness, foolishness, rabies, hydrophobia, lyssa, fury, rage, rabidness, rabidity