What is the shortest English word that contains the letters a b c d e and f?

Boldface and feedback both contain all the letters from a to f (there are many such words, but these are the shortest at eight letters). There is probably no common English word that contains all letters a through g. Feedbacking may be acceptable in some usage. Black-figured (referring to a type of pottery decoration) and double-refracting are hyphenated examples.