Derangement

noun

1. The act of deranging, or the state of being deranged; a putting out of order; disturbance of regularity or regular course; disorder.
2. Disorder of the intellect or reason; insanity.
3. Synonyms Irregularity, confusion. Lunacy, madness, etc. See insanity.
4. The act of deranging or putting out of order, or the state of being deranged; disarrangement; disorder; confusion; especially, mental disorder; insanity.
5. The property of being deranged.