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