discriminating in WordNet English dictionary

1. having or demonstrating ability to recognize or draw fine distinctions
   "an acute observer of politics and politicians"; "incisive comments"; "icy knifelike reasoning"; "as sharp and incisive as the stroke of a fang"; "penetrating insight"; "frequent penetrative observations"
   acute  discriminating  incisive  keen  knifelike  penetrating  penetrative  piercing  sharp 
   
2. showing or indicating careful judgment and discernment especially in matters of taste
   "the discriminating eye of the connoisseur"
   discriminating