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