Lateness rhymes with:
greatness, abruptness, absoluteness, acuteness, alertness, appropriateness, astuteness, bluntness, brightness, compactness, completeness, correctness, cuteness, directness, earnestness, eyewitness, faintness, fastness, fitness, flatness, forthrightness, gauntness, greatness, hartness, inertness, jointness, lightfastness, lightness, neatness, politeness, quietness, remoteness, rightness, robustness, separateness, shortness, softness, steadfastness, stoutness, sweetness, swiftness, tartness, tightness, unpleasantness, vastness, wetness, whiteness, witness, witness'
Lateness sounds like:
lading, latanze, latency, latham's, latinos, latins, lattanzi, lattanzio, lauding, leading, letting, litanies, lithuania's, lithuanians, litmus, litton's, loading, loadings, loadman's, loathing, lootens, looting, lotion's, lotions