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