Black's Law Dictionary (2nd edition)dictionaries

Substantive Law

That part of the law which the courts are established to ad-minister, as opposed to the rules according to which the substantive law Itself is administered. That part of the law which creates, defines, and regulates rights, as opposed to adjective or remedial law, which prescribes the method of enforcing rights or obtaining redress for their invasion

Source: Black's Law Dictionary 2nd Ed (1910)