Words That Rhyme With "Populous" :
3 syllables:
crapulous, flocculus, lobulus, loculus, lopolith, modulus, obelus, obolus, oculus, populace, propolis, Romulus, scrupulous, volvulus
4 syllables:
acropolis, anomalous, convolvulus, cosmopolis, discobolus, metropolis, monopolist, necropolis, unscrupulous