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