Synonyms of knowledgeable

1 Syllable

bright, sage, smart, sharp, wise

2 Syllables

abreast, privy, brainy, sophic, well-read, alert, knowing, conscious, savvy, gnostic, all-seeing, brilliant, sapient, clever, mindful, learned, well-taught, profound, versed, sager, posted, prescient, whipper, wiser, wisest, with-it

3 Syllables

insightful, discerning, cleverest, quick-witted, tuned-in, worldly-wise, insighted, warhorse, war-horse, lettered, qualified, acquainted, apprised, scholarly, sensible, percipient, blue-stocking, cleverer, profoundest, conversant, familiar, sagacious, instructed, seasoned, apprized, cultured, informed, well-rounded, cognizant, omniscient, astucious

4 Syllables

perceptive, well-informed, enlightened, experienced, understanding, literate, pansophical, intelligent, erudite, educated

5 Syllables

sophisticated, penetrative, appreciative, observative