perpetualism
/pəˈpɛtʃʊəlɪz(ə)m/ /pəˈpɛtʃʊlɪz(ə)m/ /pəˈpɛtʃ(ə)lɪz(ə)m/noun
Belief in the permanent nature and validity of something, especially as a political or religious system.
Origin
Mid 19th century. From perpetual + -ism. Compare slightly earlier perpetualist.