What's the plural form of misreligion? Here's the word you're looking for.
Answer
The noun misreligion can be countable or uncountable.
In more general, commonly used, contexts, the plural form will also be misreligion.
However, in more specific contexts, the plural form can also be misreligions e.g. in reference to various types of misreligions
or a collection of misreligions.
