Here's what rhymes with decayin.
been sin thin win min tin chin kin pin bin din fin grin gin lin syn yin cine hin kine sayin shin vin quin jinn djinn skin spin twin akin chagrin within begin therein wherein herein porcine tryin bearskin condign bogeymen pinyin shebeen boogeymen violin journeymen underpin mandolin Words that almost rhyme with decayin
him thing king ring sing wing dim grim limb rim cling hymn gym meme whim ling ning ping ting tyme wring ching ding ming sim vim shim limn zing bring swim swing slim trim brim fling sling sting skim prim bling scrim mewling queering gawping sousing moussing spring string upswing prelim scything sporing texting rousting anything pseudonym quicklime antonym everything synonym kibbutzim huzzahing dybbukim kiln villein