The state of being unconnected in memory or imagination. Antonym:association.
2.
A state in which some integrated part of a person's life becomes separated from the rest of the personality and functions independently. Synonym:dissociation.
... we encounter, every day, the apparent hypocrite. Yet many such men are not consciously dishonest. They are merely victims of disassociation." ... — The Tyranny of Weakness • Charles Neville Buck