Uncivilized (adjective)

Not having a high level of cultural and technological development; barbarian; lacking in manners or refinement.

Origin:

From un- (not) + civilized (having a high level of cultural and technological development).

Examples:

1. The tribe was considered uncivilized by the colonizers.
2. He was seen as uncivilized because of his rough manners.
3. The country is still considered uncivilized by some standards.
4. His uncivilized behavior caused him to lose friends.
5. The lack of education in the area made the population seem uncivilized to outsiders.