Debonair seems to me to have disappeared from current English, and perhaps belongs in an age when they made films like Gone With the Wind.
Is it that the word has ceased to exist, and if so what is its modern equivalent?
Or do the debonair no longer exist? Is it simply unfashionable to be debonair, whatever that was?
Who in modern society might be described as debonair?
Bond, James Bond.
Agent 007 seems to me to be the walking definition of the word debonair, and they’re still making Bond movies. No matter who’s playing the secret agent, he’s always debonair.