deculturation
noun
de·cul·tur·a·tion
| \ (ˈ)dē¦kəlchə¦rāshən also də̇¦k-\
plural -s
Definition of deculturation
: the process of divesting a tribe or people of their indigenous traits
for many native peoples brought involuntarily and reluctantly into contact with western civilization, acculturation is all too often deculturation— David Bidney