Words That Rhyme With "Witness" :

2 syllables:

bigness, brightness, cuteness, Cygnus, fatness, fitness, flatness, fleetness, glibness, greatness, hotness, Innes, Inness, lateness, lightness, litmus, muteness, neatness, patness, pignus, printless, rightness, sickness, slickness, slightness, stoutness, straightness, strictness, tautness, thickness, tightness, tintless, triteness

3 syllables:

acuteness, adroitness, astuteness, completeness, concinnous, contriteness, devoutness, diluteness, discreetness, discreteness, earwitness, effeteness, forthrightness, innateness, nasuteness, oblateness, ornateness, petiteness, politeness, remoteness, sedateness, unfitness, uprightness

4 syllables:

impoliteness, incompleteness, indiscreetness, maladroitness, obsoleteness, unpoliteness