anti-religion

adjective

an·​ti-re·​li·​gion

ˌan-tē-ri-ˈli-jən,

ˌan-tī- 

: opposing or hostile toward religion : anti-religious

Although my parents have both found religion in recent years, they were steadfastly anti-religion when they raised their three children.

—Kate Carter

Word History

First Known Use

1798, in the meaning defined above