Definition of "Primitive" :

noun: a word serving as the basis for inflected or derived forms

"Pick' is the primitive from which picket' is derived."

noun: a mathematical expression from which another expression is derived

noun: a person who belongs to an early stage of civilization

adjective: used of preliterate or tribal or nonindustrial societies

"Primitive societies."

adjective: little evolved from or characteristic of an earlier ancestral type

"Primitive mammals."

adjective: belonging to an early stage of technical development; characterized by simplicity and (often) crudeness

"Primitive movies of the 1890s."

adjective: of or created by one without formal training; simple or naive in style

"Primitive art such as that by Grandma Moses is often colorful and striking."