She’s an incorrigible (incorreggibile) flirt.
She's a corrigible (correggibile) flirt.
In Italian language "incorreggibile", used like in "1" case, is a 'negative' word for which, strictly speaking, the 'positive' form doesn't exist.
In fact, in Italian language one cannot use the "2" sentence because it sound awkward. I'm not sure why, but I think that this happens because "1" example is a bit idiomatic.
Furthermore, always with regarding to Italian language, I'm not able to think of another word, different from "correggibile", that can express the 'positive' form of "incorreggibile".
So, I'm wondering if, in English language, "corrigible" can be used to express the 'positive' form of "incorrigible" in "2" case. If not, does another word exist? Or, in this case, are English and Italian similar?