Words That Rhyme With "Sloppier" :
2 syllables:
bopper, chopper, copier, copper, cottier, cropper, croupier, crupper, cupper, dogear, dropper, happier, hopper, kupper, mopper, Napier, nappier, pauper, popper, proper, propper, rapier, scupper, shopper, stopper, supper, Topor, topper, upper, whapper, whopper
3 syllables:
dispauper, improper, unstopper