Words That Rhyme With "Vigorous" :
3 syllables:
biparous, dimerous, dipterous, Icarus, icterus, ignorance, jiggermast, Megarus, rigorous, timorous, trimerous, whisperous
4 syllables:
aeriferous, apivorous, armigerous, auriferous, bacciferous, baccivorous, brachycerous, brachypterous, calciferous, carnivorous, cheliferous, conchiferous, coniferous, considerance, cruciferous, cupriferous, detrivorous, dorsiferous, facinorous, ferriferous, fetiparous, fissiparous, floriferous, foetiparous, fructiferous, frugivorous, fungivorous, gemmiferous, gemmiparous, granivorous, gypsiferous, hemipterous, herbivorous, lactiferous, lethiferous, luciferous, mammiferous, melliferous, merdivorous, mortiferous, muciferous, multiparous, nulliporous, omnivorous, pestiferous, piliferous, piscivorous, plumbiferous, polymerous, pomiferous, poriferous, proliferous, Protagoras, pupiparous, quartziferous, saliferous, sanguivorous, setigerous, somniferous, soniferous, spiriferous, splendiferous, uniparous, vermivorous, viniferous, vociferous, yttriferous, zinciferous
5 syllables:
amentiferous, Anaxagoras, argentiferous, argilliferous, balsamiferous, carboniferous, fossiliferous, gemmuliferous, globuliferous, graminivorous, insectivorous, laticiferous, luminiferous, mammaliferous, melaniferous, nectariferous, nickeliferous, odoriferous, ozoniferous, polliniferous, resiniferous, sacchariferous, salutiferous, seminiferous, seminivorous, soporiferous, staminiferous, stoloniferous, sudoriferous, sudoriparous, umbelliferous