Here's what rhymes with lous.
aureus ous prowess leprous Words that almost rhyme with lous
loudmouth allowance loudness brownness outface owlets doubtless countess cloudless roundness bounteous foulness roundups countless boundless soundness groundless soundless stoutness groundnuts thousandths devoutness accountants endowments unsoundness mountebanks profoundness viscountess announcements pronouncements denouncements