MeanOF

perspicacious

- adjective (adj)

Meaning: observant, perceptive

Synonyms: acute alert astute aware clear-sighted clever discerning heady judicious keen penetrating percipient sagacious savvy sharp sharpwitted shrewd
Antonyms: ignorant unobservant unperceptive

Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.