"Nonsensical beliefs" refers to ideas or opinions that are illogical, irrational, or do not make sense when examined or considered. They lack sound reasoning or evidence. Full definition
Talking about how nonsensical the beliefs in gods is, is a public service. (religion.blogs.cnn.com)
The reason to hate Jesus would be that «he» promoted nonsensical beliefs that caused a lot of mayhem for all of us. (religion.blogs.cnn.com)
If nonsensical beliefs did not have the veneer of religion on them, a person proclaiming them would justifiably wind up under psychiatric care. (religion.blogs.cnn.com)