What's the plural form of internality? Here's the word you're looking for.
Answer
The noun internality can be countable or uncountable.
In more general, commonly used, contexts, the plural form will also be internality.
However, in more specific contexts, the plural form can also be internalities e.g. in reference to various types of internalities
or a collection of internalities.
Examples
Now, increasingly, the great divide and the big questions facing us will pertain to the internalities of existence, to the self, rather than to the outside.