What is another word for "integral"?

Roget's Thesaurus (1911) lists these synonyms for "integral": and, appertain, appurtenance, belong, combine, component, compose, composition, constituent, constitute, contents, element, enter, feature, form, forming, inclusive, ingredient, inhere, integrant, into, leaven, make, member, merge, parcel, part, participate, personnel, share, the, unite.