Here's what rhymes with prolongable.
cable gable table label fable sable enable stable unable singable unstable disable worktable relabel mislabel metastable reimbursable analysable Words that almost rhyme with prolongable
fatal cradle papal maple natal ladle staple nonfatal neonatal prenatal postnatal naval racial basal facial nasal glacial hazel navel gainful bagel faithful grateful painful spatial graceful cranial fateful hateful playful shameful archangel baleful baneful wakeful nonracial bacchanal laetrile pailful appraisal ungrateful wasteful unfaithful palatial tasteful biracial ungraceful plateful felafel pailsful betrayal portrayal interracial interglacial multiracial reappraisal postnasal flavourful defrayal disgraceful craniofacial disdainful distasteful