|Noah Webster's Dictionary|
1. (a.) Showing keen mental discernment; shrewd; skilled in following a trail.
2. (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.
Sagacious (1 Occurrence)
Matthew 10:16 "Remember it is I who am sending you out, as sheep into the midst of wolves; prove yourselves as sagacious as serpents, and as innocent as doves. (WEY)