12-Letter Words End with 'ssly'

There are 16 12-letter words that end with 'ssly'.

bottomlessly	breathlessly	changelessly
effortlessly	groundlessly	motionlessly
motivelessly	fathomlessly	speechlessly
spiritlessly	reasonlessly	regardlessly
relentlessly	resistlessly	thriftlessly
weightlessly

Note: These 16 12-letter words that end with 'ssly' are found from the USA & Canada version of the tournament Scrabble word list.

Also see words end with essly, assly, ossly, issly, ussly.

6-letter words end with 'ssly' (2)
7-letter words end with 'ssly' (3)
8-letter words end with 'ssly' (1)
9-letter words end with 'ssly' (13)
10-letter words end with 'ssly' (40)
11-letter words end with 'ssly' (45)
12-letter words end with 'ssly' (16)
13-letter words end with 'ssly' (7)
14-letter words end with 'ssly' (1)