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