Antireligion is opposition to religion of any kind.[1][2][3] It involves opposition to organized religion, religious practices or religious institutions. The term antireligion has also been used to describe opposition to specific forms of supernatural worship or practice, whether organized or not.

Opposition to religion also goes beyond the misotheistic spectrum.[clarification needed] As such, antireligion is distinct from deity-specific positions such as atheism (the lack of belief in deities) and antitheism (an opposition to belief in deities); although "antireligionists" may also be atheists or antitheists.