Of, forming, or having the nature of a federation.
Webster's New World
Federative Sentence Examples
I am making a family of kings attached to my federative system."
It was the first modern attempt to define Lithuania ethnographically, to respect national minorities and continue the connexion with Russia upon the federative principle.
On the 23rd of October 1903 Baron Podevils, the new premier, addressing the Bavarian diet, declared that his government would combat with all its strength any tendency to assure the future of the Empire on any lines other than the federative basis laid down in the imperial constitution.