What is the meaning of constitutional?

noun

• A regular walk taken as a form of exercise.

adjective

• Of benefit to or intended to benefit your physical makeup.
  • usage: "constitutional walk"
• Sanctioned by or consistent with or operating under the law determining the fundamental political principles of a government.
  • usage: "the constitutional right of free speech"; "constitutional government"; "constitutional guarantees"
• Existing as an essential constituent or characteristic.
  • usage: "the Ptolemaic system with its built-in concept of periodicity"; "a constitutional inability to tell the truth"
  • synonyms: built-in, inbuilt, inherent, integral
• Constitutional in the structure of something (especially your physical makeup. ).
  • synonyms: constituent, constitutive, organic