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