Words That Rhyme With "Ponderous" :
3 syllables:
copperas, dolorous, founderous, moderates, slanderous, somberness, sombreness, sonorous, thunderous
4 syllables:
cistophorus, cnidophorous, Ctenophorous, Dinoceras, isomerous, monoceros, monomerous, rhinoceros, sporophorous, zoophorus
5 syllables:
electrophorus, galactophorous, heteromerous, ommatophorous, Siphonophorous