From WordNet (r) 3.0 (2006):
discriminating
adj 1: showing or indicating careful judgment and discernment
especially in matters of taste; "the discriminating eye
of the connoisseur" [ant: indiscriminating,
undiscriminating]
2: 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" [syn: acute,
discriminating, incisive, keen, knifelike,
penetrating, penetrative, piercing, sharp]