Synonyms of brainy

1 Syllable

shark, bright, shrewd, smart

2 Syllables

highbrow, skillful, smarter, sophic, knowing, phrenic, adept, shrewdest, smarted, savvy, gnostic, brilliant, mental, sapient, clever, savvies, learned, smartest, well-taught, shrewder, bookish, whipper, with-it

3 Syllables

insightful, pansophic, cerebral, astute, cleverest, quick-witted, tuned-in, insighted, sharp-sighted, percipient, streetwise, cleverer, well-versed, psychical, eggheaded, museful, polymath, argute, highbrowed

4 Syllables

perceptive, knowledgeable, subliminal, diplomatic, accomplished, intelligent, erudite, telepathic, professorial, educated, philosophic, intellectual

5 Syllables

ideological, penetrative, intellective, well-educated, ruminative