As nouns the difference between acculturation and deculturation
is that acculturation is a process by which the culture of an isolated society changes on contact with a different one while deculturation is deculturization.
acculturation
English
Noun
A process by which the culture of an isolated society changes on contact with a different one.
A process by which a person acquires the culture of the society that he/she inhabits, starting at birth.
Usage notes
* Some social scientists reverse the meanings of enculturation and acculturation. Primary socialization is sometimes called enculturation, while secondary socialization is sometimes called acculturation.