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