adagiala. Pertaining to an adage; proverbial.(Barrow.)a. & adv.[It. adagio; ad (L. ad) at + agio convenience, leisure, ease. See Agio.] (Mus.) Slow; slowly, leisurely, and gracefully. When repeated, adagio, adagio, it directs the movement to be very slow.()n. A piece of music in adagio time; a slow movement; as, an adagio of Haydn.()