Adjective Law Law and Legal Definition
Adjective law refers to that portion of the law that deals with the rules of procedure governing evidence, pleading, and practice. It pertains to and prescribes the practice, method, procedure, or legal machinery by which substantive law is enforced or made effective. In short, it prescribes the procedure for obtaining a decision according to substantive law. Modern jurists now prefer to use the term procedural law instead of adjective law.