There are 8 15-letter words that end with 'rial'.
| corynebacterial | enterobacterial |
| entrepreneurial | improvisatorial |
| intrapreneurial | nonprofessorial |
| semiterrestrial | organomercurial |
Note: These 8 15-letter words that end with 'rial' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words end with orial, arial, erial, trial, urial, brial, crial, drial, irial.
5-letter words end with 'rial' (2)