Synset

having or demonstrating ability to recognize or draw fine distinctions
<adj.all>   freq. cnt.: 14 freq. cnt.: 6 freq. cnt.: 3 freq. cnt.: 2 freq. cnt.: 2 freq. cnt.: 1

acute

discriminating

incisive

keen

knifelike

penetrating

penetrative

piercing

sharp

sample sentences

"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"