There are 23 12-letter words that end with 'fully'.
Note: These 23 12-letter words that end with 'fully' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words end with efully, tfully, hfully, ifully, rfully, lfully, nfully, dfully, mfully, sfully, wfully, gfully, pfully, yfully, kfully, ofully.
7-letter words end with 'fully' (2)