primitive

An original or primary word; a word not derived from another, as opposed to derivative.

A member of a primitive society.

A simple-minded person.

A data type that is built into the programming language, as opposed to more complex structures.

Any of the simplest elements (instructions, statements, etc.) available in a programming language.

A basic geometric shape from which more complex shapes can be constructed.

A function whose derivative is a given function; an antiderivative.