Here's what rhymes with irrefragably.
stably unstably recognisably Words that almost rhyme with irrefragably
greatly lately shapely stately innately ornately unshapely irately staidly sedately straightly profligately shamefacedly desolately barefacedly disconsolately gaily gayly gamely daily baby mainly namely maybe safely gravely vaguely vainly basely ungainly lamely regale sagely tamely bailey sanely cagey paisley palely archaically cagy lady safety plainly crazy navy faintly hasty lazy rainy bravely dainty facie hazy saintly seine shady shaky wavy weighty gravy tasty clayey daisy pasty quaintly racy grainy humanely lacy mangy wadi chastely rangy zany dazedly inanely matey opaquely concavely unsafely frailly majorly quaky saintlier pacey staccati frailty pastry flaky insanely precis savoury scrapie brainy platy profanely snaky chickadee stagey ukulele averagely crybaby inhumanely spacey stagy mundanely chocolaty obbligati rubati strangely miscellany unsavoury milady strati overhasty cockamamie charlady pizzicati chaplaincy saleslady hippopotami intestacy magistracy