discerning

having or revealing keen insight and good judgment

• “a discerning critic”
• “a discerning reader”

unobtrusively perceptive and sympathetic

• “a discerning editor”
• “a discreet silence”

quick to understand

• “a kind and apprehensive friend” Nathaniel Hawthorne

able to make or detect effects of great subtlety; sensitive

• “discerning taste”
• “a discerning eye for color”