incisive

adjectives

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

is derived from

incisiveness

suitable for cutting or piercing

"incisive teeth"

incisive

is derived from

incision

is derived from

incision

is derived from

incise

is similar to

having or made by a thin edge or sharp point; suitable for cutting or piercing

"a sharp knife"; "a pencil with a sharp point"

sharp