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