dechristianization /diːkɹɪtʃənʌɪˈzeɪʃ(ə)n/ noun1 •The act of dechristianizing; the systematic removal of Christianity or Christian elements.Fouché, before 1789 a teacher attached to the Oratorian order, engaged in an extraordinary campaign of ‘dechristianization’ in his tour of duty in the department of the Nièvre in September [...]. — 2002 formsdechristianizations