constitutional

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 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

of benefit to or intended to benefit your physical makeup

constitutional walk

a regular walk taken as a form of exercise