Crookedness rhymes with:
wickedness, blessedness, handedness, lightheadedness, preparedness, vividness, wickedness, awkwardness, backwardness, badness, baldness, blandness, blessedness, blindness, bloatedness, boldness, coldness, discontentedness, fadness, farsightedness, fondness, goodness, handedness, hardness, high-spiritedness, kindness, lightheadedness, low-spiritedness, madness, mindedness, nearsightedness, poor-spiritedness, preparedness, public-spiritedness, redness, rudeness, sadness, sandness, shrewdness, soundness, spiritedness, vividness, weirdness, wickedness, wildness
Crookedness sounds like:
carstens, cherrystones, christening, christianize, christians, christine's, christman's, christmas, christmas', christmases, correcting, corrections, correctness, crackdowns, cresting, cristiani's, crocheting, crusading