Con·sti·tu·tion·al a.
 1. Belonging to, or inherent in, the constitution, or in the structure of body or mind; as, a constitutional infirmity; constitutional ardor or dullness.
 2. In accordance with, or authorized by, the constitution of a state or a society; as, constitutional reforms.
 3. Regulated by, dependent on, or secured by, a constitution; as, constitutional government; constitutional rights.
 4. Relating to a constitution, or establishment form of government; as, a constitutional risis.
    The anient constitutional traditions of the state.   --Macaulay.
 5. For the benefit or one's constitution or health; as, a constitutional walk. [Colloq.]
 Constitutional law, law that relates to the constitution, as a permanent system of political and juridical government, as distinguished from statutory and common law, which relate to matters subordinate to such constitution.