Here's what rhymes with unvigorous.
vigorous rigorous Words that almost rhyme with unvigorous
timorous omnivorous oviparous difference bitterness coniferous herbivorous vociferous viviparous literates dipterous indifference wilderness carnivorous illiterates pestiferous spinnerets calciferous alliterates deliverance barbiturates belligerence insectivorous itinerants riverbanks cordilleras belligerents carboniferous refrigerants disfigurements nonbelligerents
