14 possible answers to
Answers with 3 characters: SET Answers with 4 characters: FIRM Answers with 5 characters: STIFF STOUT Answers with 6 characters: FIERCE GRITTY Answers with 7 characters: ADAMANT DECIDED EARNEST DEADSET Answers with 8 characters: DECISIVE UNSHAKEN Answers with 10 characters: DETERMINED Answers with 11 characters: PORPOISEFUL