noun
derangement
dih-RAYNJ-munt/dɪˈreɪndʒmənt/
Disruption of a normal arrangement.
A shoe on a dinner plate reveals the derangement of the table setting.

Etymology
Undoing the act of putting things into line gives the image of throwing order into confusion. A general disturbance of order later came to mean disturbance of the intellect or reason.
In context
He agreed that her mind was deranged and was exceedingly anxious to find out whence the derangement had been inherited. It was a serious thing to have in the family
More examples
- The storm brings a complete derangement of local transportation.
- The novel traces the narrator's gradual descent into mental derangement.
- In a mathematical derangement, no item remains in its original position.
Forms
derangement · derangements
derange verb — To disrupt normal order or functioning.
Similar words
- disruption
- Emphasizes interruption of an activity, process, or system.
- disorder
- Emphasizes a disorganized condition rather than the disruption itself.
- disturbance
- Often suggests a temporary interruption of calm or normal functioning.