I have a question with regards to the use of radicality or radicalness. I am not quite sure which one to use or what the differences are.
I use these terms in reference to political parties and protest movements. Say, for instance, in the sentence: "Radicality/radicalness is a defining characteristic of populist right movements, both in the electoral and in the protest arena."
Wiktionary suggests that both exist, but radicality is the more commonly used form. For me, they both sound the same. What do you think, is there a difference?