Open English Wordnet
Adjectives
(a)discerninghaving or revealing keen insight and good judgment“a discerning critic”, “a discerning reader”
(s)discerning, discreetunobtrusively perceptive and sympathetic“a discerning editor”, “a discreet silence”
(s)apprehensive, discerningquick to understand“a kind and apprehensive friend” (Nathaniel Hawthorne)
(s)discerningable to make or detect effects of great subtlety; sensitive“discerning taste”, “a discerning eye for color”