Sagacious :: Sagacious (a.) Of quick sense perceptions; keen-scented; skilled in following a trail.
Sagacious :: Sagacious (a.) Hence, of quick intellectual perceptions; of keen penetration and judgment; discerning and judicious; knowing; far-sighted; shrewd; sage; wise; as, a sagacious man; a sagacious remark..
Sagacity :: Sagacity (n.) The quality of being sagacious; quickness or acuteness of sense perceptions; keenness of discernment or penetration with soundness of judgment; shrewdness.