Here's what rhymes with perpetuum.
boom tomb doom whom room bloom womb broom loom plume zoom rheum entomb assume gloom groom fume suum flume abloom costume resume perfume presume subsume elbowroom foredoom consume residuum exhume legroom boxroom strongroom Words that almost rhyme with perpetuum
tune boon doin dune soon moon noon spoon foon baboon coon prune loon rune attune goon jejune spittoon shoon balloon hewn platoon shewn strewn opportune toluene buffoon maroon pontoon swoon typhoon bassoon tycoon croon festoon doubloon patroon immune cartoon lagoon saloon cocoon aucune harpoon raccoon dragoon impugn lampoon picayune poltroon bestrewn racoon dessertspoon afternoon monsoon tablespoon forenoon inopportune importune protozoon macaroon honeymoon spermatozoon trinitrotoluene