Here's what rhymes with uminous.
chumminess crumminess Words that almost rhyme with uminous
suddenness gluttonous humbleness cussedness covenants sustenance subtilis suffocates subtenants sultriness bumptiousness unctuousness gutlessness drunkenness succulence sumptuousness accompanists bloodlessness colourlessness colourfulness voluptuous supplicants truculence trustfulness succulents supplements presumptuous presumptuousness rambunctiousness penultimates obstructionists constructionists deconstructionists