Here's what rhymes with facetiousnesse.
facetiousness speciousness Words that almost rhyme with facetiousnesse
grievousness feebleness covetousness heedlessness ceaselessness sleeplessness deaconess speechlessness needlessness steaminess vehemence unevenness deceitfulness dreaminess cenotaphs creaminess ingeniousness egregiousness edematous peacefulness treasonous recentness gleefulness pediments