There are 50 15-letter words that end with 'isms'.
Note: These 50 15-letter words that end with 'isms' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words end with lisms, nisms, tisms, risms, cisms, hisms, disms, misms, visms, eisms, pisms, oisms, yisms, gisms, bisms, aisms, sisms, uisms, kisms, fisms, iisms, jisms, xisms, wisms.
5-letter words end with 'isms' (1)