Synonyms of derangement

Noun

1. derangement, mental unsoundness, unbalance, insanity

usage: a state of mental disturbance and disorientation

2. upset, derangement, overthrow, disturbance

usage: the act of disturbing the mind or body; "his carelessness could have caused an ecological upset"; "she was unprepared for this sudden overthrow of their normal way of living"

Definition and meaning of derangement (Dictionary)