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