Words That Rhyme With "Sightedness" :
3 syllables:
bloatedness, chitinous, fetidness, footedness, notedness
4 syllables:
benightedness, committedness, delightedness, devotedness, elatedness, farsightedness, foresightedness, indebtedness, inflatedness, misguidedness, nearsightedness, relatedness, shortsightedness, unitedness