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