Per How do you know if a derivative word is actually an English word? & its cited previous answer, What are the criteria to adopt new words into English? - I am imagining that it is "recidivistically" in the sense of, e.g. "I am a recidivistically frugal Irishman."
To my hairy ears, "I am a recidivously frugal Irishman" rolls off the tongue better, but I don't know how to approach a resolve and suspect I am likely missing something very basic about how words work. Oddly, "I am reidivously an unrepentant miser" seems correct.
Perhaps all are morphologically valid forms, and if so, is there any subtlety of difference in usage?
Perhaps none, and if so, is there valid and sound reason so?
Thank you.