(n.) The act of deranging or putting out of order, or the state of being deranged; disarrangement; disorder; confusion; especially, mental disorder; insanity.

aberrance aberrancy aberration abnormality abnormity alienation amorphism anomalism anomalousness anomaly brain damage brainsickness clouded mind confusion convulsion craziness daftness dementedness dementia deviation difference disarrangement disarray disarticulation discomfiture discomposure disconcertedness disharmony dishevelment disintegration disjunction dislocation disorder disorderliness disorganization disorientation disproportion disruption distraction disturbance divergence eccentricity entropy erraticism folie furor haphazardness heteromorphism incoherence indiscriminateness inferiority inharmonious harmony insaneness insanity irrationality irregularity loss of mind loss of reason lunacy madness mania mental deficiency mental derangement mental disease mental disorder mental disturbance mental illness mental instability mental sickness mind overthrown mindsickness misarrangement monstrosity most admired disorder nonsymmetry nonuniformity oddness perturbation pixilation possession promiscuity promiscuousness psychopathy queerness rabidness randomness reasonlessness senselessness shattered mind shuffling sick mind sickness strangeness subnormality superiority teratism turbulence unbalance unbalanced mind unnaturalism unnaturalness unsaneness unsound mind unsoundness unsoundness of mind unsymmetry ununiformity upset witlessness