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