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