There are 13 10-letter words that end with 'nism'.
| antagonism | bourbonism | chauvinism |
| cinchonism | heathenism | illuminism |
| messianism | lesbianism | morphinism |
| foreignism | ruffianism | puritanism |
| utopianism | ||
Note: These 13 10-letter words that end with 'nism' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words end with anism, onism, inism, enism, rnism, unism, gnism.
6-letter words end with 'nism' (3)