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