Here's what rhymes with decapentaene.
pain chain pane bane tain deign main brain gain plain plane rain reign train attain ln vain vein cane drain stain lane sane terrain fain lain rein mane twain vane wane feign moraine urbane arraign thane wain murrain contain maintain obtain campaign domain grain strain retain entertain insane slain champagne disdain crane detain mundane pertain ordain butane certaine germane inane skein sprain swain remain sustain ascertain complain cocaine profane regain abstain aeroplane arcane appertain romaine retrain windowpane chicane ingrain reattain explain refrain humane restrain constrain hurricane cellophane humaine overlain monoplane urethane demimondaine preordain sugarcane halothane inhumane coxswain legerdemain hydroplane wholegrain reexplain foreordain polyurethane Words that almost rhyme with decapentaene
tame dame same came name game blame fame shame lame maim became claim frame flame defame acclaim inflame aflame rename declaim ballgame proclaim overcame reclaim disclaim selfsame aspartame quitclaim forename exclaim filename counterclaim