the state of being mad; insanity.

senseless folly

It is sheer madness to speak as you do.

frenzy; rage.

intense excitement or enthusiasm.

noun

aberration , absurdity , craziness , delirium , delusion , dementia , derangement , fanaticism , foolishness , hysteria , irrationality , lunacy , madness , mania , mental disorder , mental illness , neurosis , phobia , psychopathy , psychosis , stupidity , unbalance , brainsickness , disturbance , insaneness , folly , foolery , idiocy , imbecility , insanity , nonsense , preposterousness , senselessness , silliness , tomfoolery , zaniness , amazement , anger , bedlam , ecstasy , frenzy , furor , fury , indignation , ire , monomania , paranoia , rage , resentment , schizophrenia , wrath