constitutional in the structure of something (especially your physical makeup)
existing as an essential constituent or characteristic "the Ptolemaic system with its built-in concept of periodicity" "a constitutional inability to tell the truth" - built in
sanctioned by or consistent with or operating under the law determining the fundamental political principles of a government "the constitutional right of free speech" "constitutional government" "constitutional guarantees"
of benefit to or intended to benefit your physical makeup "constitutional walk"