There are 19 8-letter words that end with 'dness'.
| avidness | baldness | acidness | agedness |
| aridness | boldness | coldness | deadness |
| goodness | hardness | mildness | eyedness |
| lewdness | loudness | gladness | fondness |
| kindness | voidness | wildness | |
Note: These 19 8-letter words that end with 'dness' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words end with edness, idness, rdness, ndness, ldness, adness, udness, wdness, ddness, odness.
7-letter words end with 'dness' (6)