1. Having or revealing keen insight and good judgment
   "a discerning critic"; "a discerning reader"
    
2. Unobtrusively perceptive and sympathetic
   "a discerning editor";
   - discreet
    
3. Quick to understand
   "a kind and discerning friend";
   - apprehensive
    
4. Able to make or detect effects of great subtlety; sensitive
   "discerning taste"; "a discerning eye for colour"

1. Detect or identify something despite difficulty or distance
   "I could barely discern the ship through the fog";
   - spot, recognize, recognise [Brit], distinguish, pick out, make out
    
2. Perceive, recognize, or understand
   "With practice, she could discern subtle differences in wine flavours"

See also: clear, clear-eyed, clear-sighted, critical, discriminating, perceptive, percipient, perspicacious, prescient, tactful

Type of: detect, discover, find, notice, observe

Antonym: undiscerning