Words That Rhyme With "Sweetness" :
2 syllables:
bleakness, brightness, Cetus, cheapness, cheetahs, chicness, cuteness, deepness, Enos, fatness, fetus, fitness, flatness, fleetness, foetus, freeness, genus, greatness, hotness, keenness, lateness, leanness, Lena's, lightness, meekness, minas, muteness, neatness, patness, preakness, rightness, rita's, sleekness, slightness, steepness, stoutness, straightness, tautness, tightness, triteness, venous, Venus
3 syllables:
acuteness, Admetus, adroitness, arenas, astuteness, boletus, completeness, contriteness, devoutness, diluteness, discreetness, discreteness, dominus, effeteness, fajitas, farinas, forthrightness, hyenas, innateness, Maecenas, marinas, Miletus, nasuteness, oblateness, obliqueness, ornateness, petiteness, politeness, quietus, remoteness, Salinas, saphenous, scalenus, sedateness, selena's, silenus, subgenus, subpoenas, uncleanness, unfitness, uniqueness, uprightness
4 syllables:
Argentinas, ballerinas, biuniqueness, Epictetus, impoliteness, incompleteness, indiscreetness, intravenous, maladroitness, margaritas, obsoleteness, unpoliteness