There are 39 9-letter words that end with 'kiest'.
Note: These 39 9-letter words that end with 'kiest' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words end with ckiest, nkiest, akiest, rkiest, lkiest, okiest, skiest, ekiest, wkiest, ikiest, kkiest, ukiest.
7-letter words end with 'kiest' (8)