Marked by or divided into degrees; proceeding by orderly stages or sequence; graduated.Moderate in degree of movement or change; proceeding with slow regularity; not abrupt or sudden: as, a gradual rise or fall of the thermometer; gradual improvement in health.n. A series of steps.n. In the Rom. Cath, Ch.: An antiphon sung after the reading of the epistle, while the book is moved from the epistle to the gospel side of the altar: so called because it was formerly sung by the subdeacon or epistler and cantor on the step (gradus) of the ambo or pulpit from which the epistle was read.n. An office-book formerly in use, containing the antiphons called graduals, as well as introits and other antiphons, etc., of the mass. Also called the cantatory or cantatorium.