Here's what rhymes with undefeated.
meted repeated depleted untreated pleated unseated bleated cosseted gibbeted entreated mistreated overheated superheated rabbeted competed maltreated uncompleted Words that almost rhyme with undefeated
preceded beaded seepage speeded kneaded seceded weeded impeded acceded unheeded interceded fleapit conceded unimpeded unneeded collegiate feasted shielded fielded receipted wielded calcimined attitudinised