perceptive
Synonyms: acute, astute, aware, conscious, discerning, discreet, gnostic, incisive, insightful, intuitive, judicious, keen, knowing, knowledgeable, observant, penetrating, penetrative, percipient, perspicacious, quick, rational, responsive, sagacious, sensitive, sharp, sophic, wise Source: Roget's New Millennium Thesaurus Sign in to see full entry.