IPA: /pərˈsɛptɪvli/
KK: /pərˈsɛptɪvli/
In a way that shows a good understanding or insight about something.
She perceptively noticed the changes in his behavior.
Perceptively → It is formed from "percept" (from Latin "perceptus", meaning perceived) and "-ively" (meaning in a manner of). The word "perceptively" means in a manner that shows perception or insight.
Think of someone showing great insight or understanding — 'percept' relates to perception, and '-ively' indicates the manner of doing something.