See derangement in Webster's New World Roget's A-Z Thesaurus II
noun
A lack of order or regular arrangement:
chaos, clutter, confusedness, confusion, disarrangement, disarray, disorder, disorderedness, disorderliness, disorganization, jumble, mess, mix-up, muddle, muss, scramble, topsy-turviness, tumble. (Slang) snafu. See orderSerious mental illness or disorder impairing a person's capacity to function normally and safely:
brainsickness, craziness, dementia, disturbance, insaneness, insanity, lunacy, madness, mental illness, psychopathy, unbalance. (Psychiatry) mania. (Psychology) aberration, alienation. See sane
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