Synonyms and related words :
acute, apperceptive, appercipient, argute, astute, cogent, farseeing, farsighted, foreseeing, foresighted, forethoughted, forethoughtful, gnostic, incisive, insightful, judicious, knowing, knowledgeable, longheaded, longsighted, penetrating, perceptive, percipient, perspicacious, perspicuous, piercing, provident, sagacious, sage, trenchant, understanding,