Here's what rhymes with rackish.
blackish brackish Words that almost rhyme with rackish
waggish haggish haggis lavish radish raffish laddish parish vanish banish hashish clannish flattish mannish faddish famish kaddish caddish palish anguish catfish languish vanquish brandish flatfish snappish blandish outlandish establish reestablish disestablish