"Incisive" means having or showing the ability to quickly and accurately understand things or analyze situations, often resulting in clear and sharp insights. Full definition
It was just a matter of a couple of incisive passes going through at the right time. (justarsenal.com)
Apparently, he had some differences with Incisive Media, which acquired SEW from Jupitermedia last year. (searchmarketingstandard.com)
Indeed — we could have had more incisive analyses of the data like this one at WUWT, where as tamino shows they (seemingly unwittingly) managed, though some incredibly convoluted number torture, to turn the data upside down without realising. (wottsupwiththat.com)