Wiktionary
evershifting
a. which shifts frequently, and, presumably, will continue to do so forever
Usage examples of "evershifting".
In confusion I knelt before the great mosaic-work skull-mask on my wall, staring at it with unblinking eyes, letting myself absorb it, compelling the myriad tiny bits of obsidian and turquoise, of jade and shell, to melt and flow and change, until that skull put on flesh for me and I saw a face over the gaunt bones, another face, another, a whole series of faces, a flickering, evershifting array of faces.