primitive

Sense 1 noun

a person who belongs to an early stage of civilization

Sense 2 adjective

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

the crude weapons and rude agricultural implements of early man

Sense 3 noun

a mathematical expression from which another expression is derived

Sense 4 adjective

little evolved from or characteristic of an earlier ancestral type

archaic forms of life

Sense 5 noun

a word serving as the basis for inflected or derived forms

`pick' is the primitive from which `picket' is derived

Sense 6 adjective

used of preliterate or tribal or nonindustrial societies

primitive societies

Sense 7 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