present participle of penetrate
"The penetrating rain soaked through my umbrella and drenched me to the bone within minutes."
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"
tending to penetrate; having the power of entering or piercing
"a toxic penetrative spray applied to the surface"
"a cold penetrating wind"
"a penetrating odor"
able to pierce or penetrate
"The rain started falling hard enough that its penetrating drops soaked through my umbrella in seconds."