Here are some other possibilities:
* Primal: Emphasizing the basic, instinctive, and natural aspects.
* Primitive: Referring to an earlier stage of development or lacking the features of civilization.
* Savage: Implying a state of untamed wildness and brutality.
* Uncultured: Lacking in refinement, education, or good manners.
* Barbarian: Referring to a person or society considered to be uncivilized and lacking in moral standards.
The best word to use will depend on the specific situation and the nuance you want to convey.