primitive

primitive - noun

a person who belongs to an early stage of civilization

a mathematical expression from which another expression is derived

a word serving as the basis for inflected or derived forms

primitive - adjective

belonging to an early stage of technical development; characterized by simplicity and (often) crudeness
little evolved from or characteristic of an earlier ancestral type
used of preliterate or tribal or nonindustrial societies
of or created by one without formal training; simple or naive in style

primitive - thesaurus