What's the plural form of authenticism? Here's the word you're looking for.
Answer
The noun authenticism can be countable or uncountable.
In more general, commonly used, contexts, the plural form will also be authenticism.
However, in more specific contexts, the plural form can also be authenticisms e.g. in reference to various types of authenticisms
or a collection of authenticisms.
Examples
Pasternak portrays art as iskusstvo-vran'e, the art that deceives, defending it against Lef's demands for a crude authenticism.
Sinclair Lewis claimed that American letters exemplified a divorce of intellectual life from authenticism and reality.