Here's what rhymes with slumberous.
ulcerous cadaverous Words that almost rhyme with slumberous
generous decorous lecherous measureless reference reverence deference treacherous severance shepherdess featherless federates measurements preference tenderness temperance terrorists cleverness confederates referents irreverence togetherness regenerates apiarists adventurous intemperance degenerates electorates directorates obstreperous protectorates slenderness unadventurous overgenerous splendorous inspectorates expectorates expectorants