"Superstitious people" refers to individuals who believe in and are influenced by superstitions, which are unfounded beliefs or practices often based on supernatural or magical thinking. Full definition
Footballer's are very superstitious people so another defeat would have been a total mind fuk. (justarsenal.com)
«It's been around long enough that it established itself among superstitious people with no real scientific knowledge,» = > Ok, now you are way off base. (religion.blogs.cnn.com)
It's been around long enough that it established itself among superstitious people with no real scientific knowledge, becoming so widely accepted by the time real science began to come into existence that cultural inertia can keep it alive. (religion.blogs.cnn.com)