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