Farsightedness rhymes with:
bloatedness, discontentedness, low-spiritedness, nearsightedness, poor-spiritedness, public-spiritedness, spiritedness, bloatedness, discontentedness, high-spiritedness, low-spiritedness, mindedness, nearsightedness, poor-spiritedness, public-spiritedness, spiritedness
Farsightedness sounds like:
fabricating, fabrications, firestone's, forecasting, foreshadowing, forgetting, fractions, frictions, frightening, frightens, frosting, frostings