Wiktionary
antireligion
a. Opposed to or acting against religion
Wikipedia
Antireligion
Antireligion is opposition to religion. The term may be used to describe opposition to organized religion, or to describe a broader opposition to any form of belief in the supernatural or the divine. Antireligion is distinct from atheism (the absence of a belief in deities) and antitheism (an opposition to belief in deities), although antireligionists may also be atheists or antitheists.
Usage examples of "antireligion".
German author decided to play out his antireligion agenda by inciting hatred between Jews and Catholics.
Actually, there were no such stories - until a doctrinaire-socialist German author decided to play out his antireligion agenda by inciting hatred between Jews and Catholics.