"So when I realized [preponed] wasn't "proper" English, I was dumbfounded, flummoxed, astounded, nonplussed," ~ "nonplussed" is a word, but "plussed" isn't. Tho

"So when I realized [preponed] wasn't "proper" English, I was dumbfounded, flummoxed, astounded, nonplussed," ~ "nonplussed" is a word, but "plussed" isn't. Thought that was interesting given the word being discussed is preponed (vs. postponed).