There are 13 11-letter words that end with 'nisms'.
| antagonisms | bourbonisms | chauvinisms |
| cinchonisms | heathenisms | illuminisms |
| messianisms | lesbianisms | morphinisms |
| foreignisms | ruffianisms | puritanisms |
| utopianisms | ||
Note: These 13 11-letter words that end with 'nisms' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words end with onisms, anisms, inisms, enisms, rnisms, unisms, gnisms.
7-letter words end with 'nisms' (3)