primitive

US /ˈprɪm.ə.t̬ɪv/
UK /ˈprɪm.ə.t̬ɪv/
"primitive" picture
1.

relating to, denoting, or preserving the character of an early stage in the evolutionary or historical development of something

:
Early humans used primitive tools for hunting.
The tribe lived in a primitive society.
2.

not developed or sophisticated; crude

:
The computer graphics were quite primitive by today's standards.
His understanding of the subject was very primitive.
1.

a person belonging to a preliterate, nonindustrial society or culture

:
The anthropologist studied the customs of the primitives.
Some art critics refer to certain self-taught artists as primitives.