disassociation

nouns

the state of being unconnected in memory or imagination
"I could not think of him in disassociation from his wife"
disassociation
is derived from
disassociate
antonym
association
is a type of (narrower)
the state of lacking unity
separation
a state in which some integrated part of a person's life becomes separated from the rest of the personality and functions independently
disassociation, dissociation
is derived from
disassociate