1. (n.) The condition of being mad; insanity; lunacy.

2. (a.) Frenzy; ungovernable rage; extreme folly.

African lethargy Asiatic cholera Chagres fever German measles Haverhill fever abandon aberration abnormality acute articular rheumatism ague alienation alkali disease amebiasis amebic dysentery anthrax asininity bacillary dysentery bastard measles battiness black death black fever blackwater fever brain damage brainlessness brainsickness breakbone fever brucellosis bubonic plague buffoonery cachectic fever cerebral rheumatism chicken pox cholera clouded mind clownishness cowpox crackpottedness crankiness craze craziness daffiness daftness dandy fever deer fly fever delirium dementedness dementia dengue dengue fever derangement desipience diphtheria disorientation distraction dumdum fever dysentery eccentricity ecstasy elephantiasis encephalitis lethargica enteric fever erysipelas famine fever fatuity fatuousness fire and fury five-day fever flu folie folly foolery foolheadedness foolishness frambesia frenzy frivolity frivolousness furor furore fury futility giddiness glandular fever goofiness grippe hansenosis hepatitis herpes herpes simplex herpes zoster histoplasmosis hookworm hydrophobia hysteria idiocy illogic illogicality illogicalness imbecility impracticality inanity ineptitude infantile paralysis infectious mononucleosis inflammatory rheumatism influenza insaneness insanity intoxication irrationality jail fever jungle rot kala azar kissing disease lepra leprosy leptospirosis loa loa loaiasis lockjaw loss of mind loss of reason lunacy malaria malarial fever mania marsh fever measles meningitis mental deficiency mental derangement mental disease mental disorder mental disturbance mental illness mental instability mental sickness milzbrand mind overthrown mindlessness mindsickness mumps niaiserie nonsense nugacity nuttiness oddness orgasm orgy ornithosis osteomyelitis paratyphoid fever parotitis parrot fever passion pertussis pixilation pneumonia pointlessness polio poliomyelitis polyarthritis rheumatism ponos possession preposterousness psittacosis psychopathy psychosis queerness rabbit fever rabidness rabies rage rapture rat-bite fever ravishment reasonlessness relapsing fever rheumatic fever rickettsialpox ridiculousness ringworm rubella rubeola sappiness scarlatina scarlet fever schistosomiasis screwiness senselessness septic sore throat shattered mind shingles sick mind sickness silliness sleeping sickness sleepy sickness smallpox snail fever splenic fever spotted fever strangeness strep throat stupidity swamp fever tearing passion tetanus thoughtlessness thrush tinea towering rage transport trench fever trench mouth triflingness triviality tuberculosis tularemia typhoid typhoid fever typhus typhus fever unbalance unbalanced mind undulant fever unsaneness unsound mind unsoundness unsoundness of mind vaccinia varicella variola venereal disease viral dysentery wackiness weirdness whooping cough witlessness yaws yellow fever yellow jack zaniness zanyism zona zoster