primitive (Adjective) — Belonging to an early stage of technical development; characterized by simplicity and (often) crudeness. ex. "primitive movies of the 1890s"
primitive (Adjective) — Little evolved from or characteristic of an earlier ancestral type. ex. "primitive mammals" ex. "the okapi is a short-necked primitive cousin of the giraffe"
primitive (Adjective) — (anthropology) used of preliterate, tribal or nonindustrial societies. ex. "primitive societies"
primitive (Adjective) — (fine arts) of or created by one without formal training; simple or naive in style. ex. "primitive art such as that by Grandma Moses is often colourful and striking"
primitive (Noun) — A person who belongs to an early stage of civilization.
primitive (Noun) — A mathematical expression from which another expression is derived.
primitive (Noun) — A word serving as the basis for inflected or derived forms. ex. "'pick' is the primitive from which 'picket' is derived"