Unconvincing rhymes with:
convincing, convincing, convincing, convincing, convincing, mincing, rinsing, wincing, advancing, announcing, balancing, bensing, bouncing, commencing, condensing, conferencing, convincing, counterbalancing, dancing, denouncing, dispensing, distancing, duensing, enhancing, ensing, expensing, experiencing, fencing, financing, freelancing, glancing, influencing, lancing, lansing, lensing, licensing, mensing, mincing, mispronouncing, outdistancing, pouncing, prancing, pronouncing, rebalancing, referencing, refinancing, renouncing, rensing, rinsing, romancing, sansing, sensing, sentencing, sequencing, silencing, teleconferencing, toensing, trouncing, videoconferencing, wincing