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