Pertaining to or inherent in the constitution (of a person or thing); springing from or due to the constitution or composition: as, a constitutional infirmity; constitutional ardor or apathy.Beneficial to, or designed to benefit, the physical constitution: as, a constitutional walk.Forming a part of, authorized by, or consistent with the constitution or fundamental organic law of a nation or state.Having the power of, or existing by virtue of and subject to, a constitution or fundamental organic law: as, a constitutional government.Relating to, concerned with, or arising from a constitution.A body of delegates meeting under authority of Congress to frame a constitution of government for a new State; or such a body convened by a State legislature, in the prescribed manner. to revise the existing constitution of the State.n. [Short for constitutional walk or exercise. See I., 2.] Exercise by walking, for the benefit of health.