Here's what rhymes with peritonitus.
Words that almost rhyme with peritonitus
eponymous brokenness motionless proteolysis copiousness lonesomeness smokiness soullessness atrociousness dolefulness foaminess woefulness exogenous hopelessness socialists homelessness boastfulness chauvinists emotionless outspokenness wholesomeness loathsomeness postmistress ferociousness soulfulness toastmistress globalists precociousness ufologists unwholesomeness