Synonyms of perspicacious

1 Syllable

keen, shark, shrewd, sharp

2 Syllables

probing, alert, shrewdest, heady, savvy, gnostic, clever, hawk-eyed, shrewder, cannier, wiser, einstein, canny, wisest

3 Syllables

discerning, astute, insighted, sharp-witted, rational, politic, percipient, sagacious, clear-sighted, eagle-eyed, well-judged, judicious, acute, argute, astucious, aware

4 Syllables

perceptive, nimble-witted, incisive, penetrating, cognoscible, appercipient, intelligent, deductive