bad-mannered and impolite, rude and lacking in refinement or culture;
e.g. His attitude during dinner was terribly uncivilized, and he was not invited again.
(adjective)
wild, characteristic of regions/areas that are far away from settled society, not considered to be advanced or refined in a social, cultural, or moral sense;
e.g. The tribe's rituals are considered to be uncivilized by modern society.