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