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