Synonyms of discerning

1 Syllable
sage, sharp, wise, shark, shrewd, thought, bright
2 Syllables
probing, clairvoyant, conscious, gnostic, sapient, clever, profound, sager, discreet, einstein, with-it, sophic, sanest, knowing, brilliant, sharp-eyed, high-brow, prudent, piercing, saner, whipper, wiser, wisest, shrewdest, savvy, savvies, subtle, farseeing, shrewder
3 Syllables
rational, logical, streetwise, judicious, farsighted, insighted, percipient, ingenious, astucious, refined, insightful, astute, cleverest, tuned-in, cleverer, judgmatic, advertent, clear-sighted, well-judged, museful, well-thought-out, argute, far-sighted, critical, observant, finicking, sensible, profoundest, sagacious, acute, ideation
4 Syllables
sensitive, intelligent, ruminations, perceptive, knowledgeable, nimble-witted, penetrating, perspicacious, exquisite, extensional, juridicious, well-reasoned, deductive, understanding, selective, rumination, intentive
5 Syllables
overcritical, ruminative, penetrative, discriminating, well-organized, supraliminal
6 Syllables
discriminative, ratiocinative