Definition of perpetualism in English:
perpetualism
noun pəˈpɛtʃʊəlɪz(ə)mpəˈpɛtʃʊlɪz(ə)mpəˈpɛtʃ(ə)lɪz(ə)m
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.