noun
opposition to religion; anti-religious ideology
Refers to a principled stance or movement against organized religion, often in political or philosophical contexts.
彼の反宗教主義は、若い頃の経験に根ざしている。
His opposition to religion is rooted in experiences from his youth.
その政党は反宗教主義を掲げて政教分離を主張した。
The political party advocated separation of church and state under the banner of anti-religious ideology.
Compound of 反 (anti-), 宗教 (religion), and 主義 (principle, -ism). The term is a straightforward modern coinage following standard Sino-Japanese word formation patterns.