IPA: /ˈbaʊnsiər/
KK: /ˈbaʊnsiər/
More lively and springy than something else.
The new trampoline is bouncier than the old one.
Bouncier → It is formed from "bounce" (originating from Middle English "bouncen", meaning to leap or spring) and the suffix "-ier" (meaning more). The word "bouncier" means more capable of bouncing or springing back.
Think of something that can leap or spring back more easily — that's what 'bouncier' means, as it describes something that bounces more.