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