The secularization thesis refers to the belief that as societies progress, particularly through modernization and rationalization, religion loses its authority in all aspects of social life and governance.
Tesis sekularisasi mengarah pada keyakinan bahwa ketika masyarakat "berkembang", terutama melalui modernisasi dan rasionalisasi, agama kehilangan kekuasaannya di semua aspek kehidupan sosial dan pemerintahan.