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