Here's what rhymes with inperpetuum.
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 inperpetuum
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 inopportune importune lampoon picayune poltroon bestrewn racoon dessertspoon afternoon monsoon tablespoon forenoon protozoon macaroon honeymoon spermatozoon trinitrotoluene