IPA: /ˈsplæʃi.nəs/
KK: /ˈsplæʃiˌnɛs/
The quality or state of being flashy or showy, often involving a lot of movement or water.
The splashiness of the fireworks display captivated the audience.
Splashiness → It is formed from "splash" (of uncertain origin, likely imitative of the sound made when something hits water) and "-iness" (meaning the quality of). The word "splashiness" refers to the quality of being splashy or producing splashes.
Think of the sound of water splashing when something hits it, and remember that "splashiness" describes the quality of making those splashes.