Prosperous rhymes with:
heterosporous, homosporous, heterosporous, homosporous, heterosporous, homosporous, obstreperous, oviparous, ovoviviparous, viviparous
Prosperous sounds like:
perseveres, prisburg, prospers
heterosporous, homosporous, heterosporous, homosporous, heterosporous, homosporous, obstreperous, oviparous, ovoviviparous, viviparous
perseveres, prisburg, prospers