IPA: /ˈbaʊn.sɪ.li/
KK: /ˈbaʊnsɪli/
In a lively and energetic way, often suggesting movement or activity that is cheerful and springy.
The children played bouncily on the trampoline, laughing and having fun.
Bouncily → It is formed from "bounce" (of uncertain origin, possibly imitative of the sound) and "-ily" (a suffix meaning in a manner). The word "bouncily" describes the manner of bouncing, suggesting a lively or springy movement.
Think of the lively action of bouncing — that's why bouncily means moving in a lively or springy way.