There are 20 9-letter words that end with 'ials'.
| biennials | bilabials | alluvials |
| armorials | arterials | binomials |
| brachials | colonials | materials |
| memorials | mistrials | monomials |
| geranials | imperials | officials |
| reburials | pretrials | troopials |
| troupials | tutorials | |
Note: These 20 9-letter words that end with 'ials' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words end with rials, nials, tials, cials, dials, mials, bials, pials, vials, hials, sials, uials.
5-letter words end with 'ials' (4)