Here's what rhymes with dicotyledoneous.
erroneous harmonious felonious acrimonious ceremonious parsimonious inharmonious disharmonious sanctimonious unceremonious Words that almost rhyme with dicotyledoneous
copious coleus doziness holiness loneliness cosiness coziness nosiness gaucheness associates commodious melodious dissociates opprobrious ghostliness folksiness mouldiness defoliates moldiness defoliants unholiness incommodious disassociates exfoliates