"high entropy" means a state of disorder or randomness. It implies that the system or situation has many different possibilities or combinations and lacks organization or predictability. Full definition
Mixing the unmixable to create «shocking» nanoparticles called high entropy alloy nanoparticles (innovationtoronto.com)
It would be quite interesting to further explore the underlying atomistic mechanisms of the nucleation and growth of high entropy alloy nanoparticle,» says Reza Shahbazian - Yassar, associate professor at the University of Illinois at Chicago and a corresponding author of the paper. (innovationtoronto.com)
That impression of chaos is why they're called high entropy alloys. (sciencedaily.com)