Sonorous rhymes with:
generous, onerous, overgenerous, adulterous, adventurous, amorous, avarice, barbarous, boisterous, cancerous, cantankerous, carboniferous, carnivorous, coniferous, dangerous, decorous, fossiliferous, generous, glamorous, hatteras, herbivorous, heterosporous, homosporous, humerous, humerus, humorous, insectivorous, lazarus, lecherous, murderous, numerous, obstreperous, odorous, omnivorous, onerous, overgenerous, oviparous, ovoviviparous, phosphorous, phosphorus, ponderous, precancerous, preposterous, prosperous, rancorous, rapturous, rhinoceros, rigorous, slanderous, temerous, tetramerous, thunderous, timorous, traitorous, treacherous, unglamorous, uterus, vigorous, viviparous, vociferous
Sonorous sounds like:
samaras, sammarco, samurai's, samurais, sanmark, scammers, scanners, scenarios, sceneries, schoenrock, schooners, schumer's, sconiers, sconyers, secomerica, seigniorage, seminaries, seminars, seniors, seymour's, shamir's, shamrock, shamrock's, shimmers, shinners, shinrikyo, siemers, signers, simmers, sinners, sisneros, skimmers, skinner's, smears, smirk, smirks, smyers, snares, snarski, sneers, somers, somewheres, sommers, sonrise, sooner's, sooners, summaries, summarize, summarizes, summer's, summers, summers's, summor's, sumners, sunamerica, sunrise, sunrise's, swimmers, synergies, synergy, synergy's